Mean, Median, Mode, and Range Mean, median, and mode are three kinds of "averages". There are many "averages" in statistics, but these are, I think, the three most common, and are certainly the three you are most likely to encounter in your pre-statistics courses, if the topic comes up at all. The "mean" is the "average" you're used to, where you add up all the numbers and then divide by the number of numbers. The "median" is the "middle" value in the list of numbers. To find the median, your...
1046 Words | 5 Pages
describing some aspect of a population. a. Sample. b. Parameter. c. Inference. d. Correction factor. 2. a. b. c. d. A sample quantity that serves to estimate an unknown parameter from a population is called: An equivalence. An estimator. An inference. An hypothesis test. 3. A sample may be drawn to: a. Save needless waste of time, money, and effort. b. Discover facts about a population. c. Make inferences about a parameter. d. All of the above. 4. The measure of central tendency which is sensitive to extreme...
1709 Words | 4 Pages
Statistics: Median, Mode and Frequency Distribution Given a list of numbers, The median is the “middle value” of a list. It is the smallest number such that at least half the numbers in the list are no greater than it. If the list has an odd number of entries, the median is the middle entry in the list after sorting the list into increasing order. If the list has an even number of entries, the median is equal to the sum of the two middle (after sorting) numbers...
487 Words | 3 Pages
Population and Sampling MTH/231 August 29, 2012 Importance of Population and Sampling History from Political Arithmetic to Statistics The history timeline show evidence of statistical data as early as Ancient Greece time but records show statistics in late 16th century, when it was introduced by, John Graunt, William Petty, and Pascal and later in 17th century by Gottfried Achenwall. It was an exciting time when success and discoveries raised the confidence of scientists, physicist and astronomers...
835 Words | 3 Pages
Population and Sampling MTH/231 Fahad M. Gohar Statistical data dates back to as early as Ancient Greek time, where it was introduced by John Graunt, William Petty and Pascal in the 16th century. It was then re-introduced by Gottfriend Achenwall in the 17th century. This was a very exciting time for scientists, astronomers and physicists alike as it raised the confidence and knowing that the laws of nature were not of divine intervention. As the years went on, new mathematical...
737 Words | 3 Pages
study, researchers simply observe characteristics and take measurements, as in a sample survey. In a designed experiment, researchers impose treatments and controls and then observe characteristics and take measurements. Data from a sample of citizens of a certain country yielded the following estimates of average TV viewing time per month for all the citizens. Answer: Inferential, because the statistics are used to make inference about the population. * 50 kids are divided into...
1088 Words | 7 Pages
Measures Of Central Tendency: Mean Medium Mode Mode instead of mean… Categorical variables, words not numbers Measures of Dispersion: Standard Deviation, Range, and Variables Range = Largest number minus smallest number SD = Average Distance from the Mean (Most frequently used) Variance: Fat & Skinny Distributions: Skewness – measure of the lack of symmetry, or the lopsidedness of a distribution. One “tail” of the distribution is longer than another. Kurtosis: has to do...
518 Words | 4 Pages
similarities or differences do you observe from the sample data? Descriptive analysis in excel has been used to come up with relevant figures of the given data samples which is tabulated below: Descriptive Statistics | Current | Proposed | Mean | 75.06557 | 75.42623 | Standard Error | 0.505094 | 0.32091 | Median | 76 | 76 | Mode | 76 | 76 | Standard Deviation | 3.944907 | 2.506385 | Sample Variance | 15.5623 | 6.281967 | Kurtosis | -0.06933 | 0.58694 | Skewness | -0.22053 | -0.28749...
1039 Words | 4 Pages
Mean, Mode and Median Ungrouped and Grouped Data Ungrouped Data refers to raw data that has been ‘processed’; so as to determine frequencies. The data, along with the frequencies, are presented individually. Grouped Data refers to values that have been analysed and arranged into groups called ‘class’. The classes are based on intervals – the range of values – being used. It is from these classes, are upper and lower class boundaries found. Mean Mean The ‘Mean’ is the total of all the values...
943 Words | 18 Pages
Mean, Mode and Median Ungrouped and Grouped Data Ungrouped Data refers to raw data that has been ‘processed’; so as to determine frequencies. The data, along with the frequencies, are presented individually. Grouped Data refers to values that have been analysed and arranged into groups called ‘class’. The classes are based on intervals – the range of values – being used. It is from these classes, are upper and lower class boundaries found. Mean Mean The ‘Mean’ is the total of all the values...
943 Words | 18 Pages
Demographic is a study of human population which based on few aspects such as population density, population composition and lifestyle choices. While housing characteristics is define as the differences in housing such as the size, type and age of house. Generally speaking, demographic factors will result in having different housing characteristics. To illustrate this relationship, two suburbs, Stuart Park and Nightcliff from Darwin have been chosen. First of all, Darwin is a tropical wet and dry...
1284 Words | 4 Pages
Week Five Discussion | This Discussion will give you the opportunity to calculate or identify the three measures of central tendency. You will be asked to select an appropriate real life situation in which one measure would be more appropriate than the other two measures of center. 1. Select a topic of interest to you and record the topic in your posting, for example: “What is the average number of hours people watch TV every week?” Make sure the question you ask will be answered with a number...
816 Words | 3 Pages
Gulf Real Estate Properties Gulf Real Estate Properties, Inc., is a real estate firm located in southwest Florida. The company, which advertises itself as “expert in the real estate market,” monitors condominium sales by collecting data on location, list price, sale price, and number of days it takes to sell each unit. Each condominium is classified as Gulf View if it is located directly on the Gulf of Mexico or No Gulf View if it is located on the bay or a golf course, near but not on the Gulf...
2039 Words | 6 Pages
MEDIAN Source Code #include <stdlib.h> #include <stdio.h> #include <math.h> float CalculateMedian(float *arrValue, int max) { float median = 0; float value[100]; int i, j; float temp; if(max > 100) return 0; for(i = 0; i < max; i++) value[i] = arrValue[i]; for(i = 0; i < max; i++) { for(j = 0; j < max - i - 1; j++) { if(value[j] > value[j + 1]) ...
765 Words | 9 Pages
ADJUSTMENT OF FRESHMEN STUDENT OF PHARMACY IN MODES OF TRANSPORTATION IN CENTRO ESCOLAR UNIVERSITY An Undergraduate Research Presented to The School of Pharmacy Centro Escolar University In Partial Fulfillment of the Requirements for the Degree Bachelor of Science in Pharmacy by Alisonn R. Osicos Crizel O. Martirez Dyanh Camille G. Macatangay Jerica Anne A. Raz Michael I. Labutong Introduction Metro Manila is the metropolitan region which has the most populous metropolitan area in...
845 Words | 3 Pages
data values of 27, 25, 20, 15, 30, 34, 28, and 25. a) Compute the mean, median, and mode. b) Compute the 20th, 65th, and 75th percentiles. c) Compute the range, interquartile range, variance, and standard deviation. Answers: Data values: 15, 20, 25, 25, 27, 28, 30, 34 a) Mean: [pic]= ∑xi/n = (15+20+25+25+27+28+30+34) / 8 = 204 / 8 = 25.5 Median: Even number, so median is = (25+27)/2 = 26 Mode: Most frequent number = 25 b) 20th Percentile = (P/100)n =...
477 Words | 3 Pages
are the characteristics of a population for which a mean/median/mode would be appropriate? Inappropriate? The analysis of data begins with descriptive statistics such as the mean, median, mode, range, standard deviation, variance, standard error of the mean, and confidence intervals. These statistics are used to summarize data and provide information about the sample from which the data were drawn and the accuracy with which the sample represents the population of interest. The mean, median, and mode...
873 Words | 3 Pages
central tendency. Under what condition(s) should each one be used? Mean- Works good when it comes to test scores Median- should be used when describing something like average income. Mode= is good is you want to see what is you best seeing product in a store situation. 2. Last year, 12 employees from a computer company retired. Their ages at retirement are listed below.First, create a stem plot for the data. Next, find the mean retirement age. Round to the nearest year. 55 77 64 77 69 63 62 64 85 64 56 59...
623 Words | 5 Pages
demographic transition theory became the dominant theory of population growth. Based on observed trends in Western European societies, it argues that populations go through three stages in their transition to a modern pattern. Stage one (pre transition) is characterized by low or no growth, and high fertility is counterbalanced by high mortality. In Stage Two (the stage of transition), mortality rates begin to decline, and the population grows at a rapid pace. By the end of this stage, fertility has...
1570 Words | 5 Pages
Misrepresentation, 2006) Unintentional misrepresentation can occur through bad sampling which is usually conclusive of sampling a small group in order to represent characteristics of a larger group or population. (Basics Statistical Concepts, 2011). One thing that can easily cause misrepresentation in data is the difference between association and causation—although “variables may be affected by a knowledge of another, does not mean that one variable causes another (Armitage, Berry, & Matthews, 2008). For example...
527 Words | 3 Pages
look at the solutions guide first. 1. Explain the difference between a population and a sample. In which of these is it important to distinguish between the two in order to use the correct formula? mean; median; mode; range; quartiles; variance; standard deviation. 2. The following numbers represent the weights in pounds of six 7year old children in Mrs. Jones' 2nd grade class. {25, 60, 51, 47, 49, 45} Find the mean; median; mode; range; quartiles; variance; standard deviation. 3. If the variance is...
1292 Words | 4 Pages
| | | | | | | | | | | | | | | | | I. Calculate the mean, median, and mode for the following scores: | | | | | | | | | | A. 5,2,8,2,3,2,4,0,6Mean: 3.56Median: 3 Mode: 2 | | | | | | | | | | | | | | | B. 30, 20, 17, 12, 30, 30, 14, 19Mean: 21.5 Median: 19.5Mode: 30 | | | | | | | | | | | | | C. 1.5, 4.5, 3.2, 1.8, 5.0, 2.2Mean: 3.03Median: 2.7Mode: No mode | | | | | | | | | | | | | | | | | | | | | | | |...
320 Words | 2 Pages
world’s population growth has slowed. Though both “developed” and “less developed” nations are struggling to sustain their aging populations, developed countries such as Japan are experiencing the direst affects as studies will suggest that within the next decade the countries wealth will decline as a result of having to support the elderly portion of the population. World population has more than doubled in the last 50 years, and it has nearly quadrupled since 1900. Currently, world population is growing...
851 Words | 3 Pages
poor are always with you” (Matthew 26:11) Discuss the meaning of poverty in the UK today and critically assess the means by which government would tackle the problem. There are two identifiable types of poverty; there is Absolute Poverty whereby human existence itself is challenged, like the famine of Somalia and other central African states. But there is also Relative Poverty in which people cannot sustain a minimum lifestyle in relation to what is a generally accepted standard in a society. This...
1643 Words | 4 Pages
ever before. Concerning with this problem, a telegraph on 1st October, 2012 entitled “World faces ageing population time bomb says UN” was posted in order to provide the facts and forecasts about ageing population in the world and to recommend some ideas to deal with this problem. In spite the fact that living longer is a great achievement of human beings, a rapidly ageing population also leads to difficulties for many countries in all over the world. A recent report estimated that the...
1004 Words | 6 Pages
Chapter 7 #42 The accounting department at Weston Materials, Inc., a national manufacturer of unattached garages, reports that it takes two construction workers a mean of 32 hours and a standard deviation of 2 hours to erect the Red Barn model. Assume the assembly times follow the normal distribution. a. Determine the z values for 29 and 34 hours. What percent of the garages take between 32 hours and 34 hours to erect? z(29) = (29-32)/2 = -3/2 z(34) = (34-32)/2 = 1 z(32) = 0 P(32 < x <...
1076 Words | 5 Pages
302. An Assignment on Various Population Matters. Population Definition. Population is a term which refers to the total human inhabitants of a specified area such as; a continent, a country, or a city, at a given time. It can be defined further in a number of ways depending on the various aspects of population that one would be looking at. It can refer to the various aspects of population such as age, ethnicity, race, or region. For example, population size may refer to either the total...
1161 Words | 4 Pages
distribution * Mean = center of mass = the balance point * Define first quartile to be the median of the observations below the median * Define third quartile to be the median of the observations above the median * The interquartile range IQR is Q3 - Q1 * * Coefficient of Variation: defined as the ratio of SD to the mean, has no units, usually is expressed as a percentage, indicates how large SD is relative to the mean * IQR: Robust measure (same as the median), Has the same...
703 Words | 3 Pages
The Population Growth Rate in India For many years concern has been voiced over the seemingly unchecked rate of population growth in India, but the most recent indications are that some success is being achieved in slowing the rate of population growth. The progress which has been achieved to date is still only of a modest nature and should not serve as premature cause for complacency. Moreover, a slowing of the rate of population growth is not incompatible with a dangerous population increase...
1572 Words | 5 Pages
describe a society in which rules of behavior have broken down during periods of rapid social change or social crisis. Anomie undermines society’s social control function. If a society becomes anomic, it can no longer establish and maintain control. Under these circumstances, the will to obey legal codes is strained, and alternatives, such as crime, become more attractive.”-Juvenile Delinquency. In the following paper I will be discussing and defining Merton’s modes of adaptation; which includes conformity...
864 Words | 3 Pages
FORCES, RELATIONS AND MODES OF PRODUCTION The forces, relations and modes of production are the core concepts of Marx’s social theory. They are fundamental to the constitution of a society. The mode of production is the main determinant of social phenomena and is made up of the forces of production and the relations of production. The forces of production refer to the material worked upon, the tools, techniques, knowledge and skills employed in the production of economic goods. The relations of...
1008 Words | 3 Pages
as the arithmetic mean or simply the mean. The mean is a measure of the center of the data. Average and mean are used interchangeably to label the result of the sum of all measurements divided by the number of measurements. In mathematical notation the formula for calculating the sample mean is given below. If the value given represents the mean of all values in a population it is denoted . When the data are from a sample, the calculated value, in this case the mean, is referred to as...
1668 Words | 11 Pages
statistics the group we wish to study is called the population * A sample is a subset of the population which is used to gain insight about the population. Samples are used to represent a larger group, the population. * • Descriptive statistics – the collection, organization, analysis, and presentation of data. * Inferential statistics – uses descriptive statistics to estimate population parameters; an educated guess about the population based on sample data. Chapter 2 * • During...
1015 Words | 4 Pages
hours working per week. 2. What statistics were used to describe the length of labor in this study? Were these appropriate? Length of labor was described in hours. No, because the original stratified sample of 80 had 12 people who dropped out which deviated the results. 3. What other statistic could have been used to describe the length of labor? Provide a rationale for your answer. Other statistic that could have been used to describe labor active labor , pre labor , complications, group...
973 Words | 6 Pages
Introduction Population can be considered as the pivot point to which all development efforts of a country are directed. This assert to the fact that any development intervention that do not take the needs, conditions, aspirations and aims of the populace into considered can be considered as myopic. Since planning is concerned with the future, policy makers and planners require justified projections which provide information about the future size, structure and distribution of the population. Therefore...
1587 Words | 3 Pages
notice patterns in the data that would be overlooked otherwise and result in inaccurate and possibly subjective conclusions (Portney &ump; Watkins, 2009). Frequency distribution is a method used in descriptive statistics to arrange the values of one or multiple variables in a sample, so it will summarize the distribution of values in a sample. Frequency distribution is the most basic and frequently used method in statistics because it creates organized tables of data which can be used later to calculate...
1124 Words | 3 Pages
Year 11 English Language Unit 1, Assessment Task 2: Report – Language in Urban Environments Written Mode Introduction Communication is a tool with which we exercise our influence on others, bring out changes in our and others’ attitudes, motivate the people around us and establish and maintain relationships with them. Communication forms a major part of our life and is a social activity. This social activity is pursued verbally through speech, reading and writing or non-verbally through body...
1509 Words | 5 Pages
Aging of population (also known as demographic aging, and population aging) is a summary term for shifts in the age distribution (i.e., age structure) of a population toward older ages. A direct consequence of the ongoing global fertility transition (decline) and of mortality decline at older ages, population aging is expected to be among the most prominent global demographic trends of the 21st century. Population aging is progressing rapidly in many industrialized countries, but those developing...
1732 Words | 5 Pages
The Doctrine of the Mean in Aristotle's Politics. Examining the texts of Aristotle's "Nicomachean Ethics" and "Politics" side by side, one is bound to find parallels between his reasoning with regard to the individual and to the state. In "Nicomachean Ethics" Aristotle discusses happiness, virtue, and the good life on an individual level and lays out necessary provisions for the good life of a person. He maintains that virtue is a necessary element of happiness: a man will be happy if he has virtues...
2178 Words | 6 Pages
6a. Urbanization refers to much more than simple population growth; it involves changes in the economic, social and political structures of a region. Rapid urban growth is responsible for many environmental and social changes in the urban environment. The rapid growth of cities strains their capacity to provide services such as energy, education, health care, transportation, sanitation and physical security. *3 Urbanization transforms societal organizations, the role of the family, demographic structures...
1024 Words | 3 Pages
Most studies describe the subjects that comprise the study sample. This description of the sample is called the sample characteristics which may be presented in a table or the narrative of the article. The sample characteristics are often presented for each of the groups in a study (i.e. experimental and control groups). Descriptive statistics are used to generate sample characteristics, and the type of statistic used depends on the level of measurement of the demographic variables included in a study...
1313 Words | 4 Pages
conclusions about a population Inferential statistical use sample data to make general estimates about the larger population, and infer or make an intelligence guess about, the population Sample: a set of observations drawn from the population of interest. Samples are used most often because it is rare that we are able to study every person (or organization or laboratory rat) in a particular population. Researchers usually study a sample, but they are really interested in the population, which includes...
2572 Words | 7 Pages
Life Sciences Sampling and Populations Paper MTH/231 Life Sciences Sampling and Populations Paper The core of biostatistics consists of the definition of a population and sampling, as they are the indicators of the fundamental concepts that are essential to understanding the statistics of the life and health sciences. The idea that a sample is illustrative of a given population, since a sample is derived from a specific, yet larger pool of information seems factually representative...
854 Words | 3 Pages
Tendency and Measures of Variation Task 1: 1.1 a.) Define Population: Population is a complete group or collection of items or people selected to be used for a statistical study b.) Define Sample: Sample is a partial selection or part of the population for which the study uses for information gathering. 1.7 The Neilson study is an inferential study; the results contained on the study are not focused and generalized. The population is not defined and therefore inferences are needed to state...
496 Words | 3 Pages
the pattern of population change in the UK? There are many different components that all add together for the reason why population does change in a specific location. This change is considered ‘dynamic’ as it is constantly changing due to many factors that are always effecting the rate of population change. One of the biggest influences of population change would be the birth and death rates of an area. Birth/death rate is the total number of births/deaths per 1,000 of a population in a year. The...
1149 Words | 4 Pages
... Executive summary This report is just about to forecast the suitable entry mode for the CapitaLand Limited which is based in Singapore to explore business in Australia’s market and to prove suitable choice of entry mode with support of company analysis, Context analysis and Scale analysis. All these analysis play an important role for this report. As in company analysis, choosing the appropriate entry mode is supported by researching the company’s data and constitutions of its main products...
2054 Words | 6 Pages
November, 2004 Modes of Existence When encountered with various experiences in life, a person is given the choice of how he or she will go about interpreting the experiences. Such interpretations are directly related to that individual's perception of life and its meaning, his or her mode of existence. This mode of existence provides the person with a reason to live, and, above all, dictates his or way of living within the world. Aesthetic existence and ethical existence are two such modes of existence...
2140 Words | 6 Pages
statistical constants which enable us to figure out in a single effort the significance of the whole.” (Prof Bowley) The main objectives of measure of central tendency are To reduce data in a single value. To make easy comparisons between data. There are different types of averages; each has its own business applications. 1. Arithmetic Mean 2. Median 3. Mode 4. Geometric Mean 5. Harmonic Mean 1.1 Arithmetic Mean 1.1.1 Definition Most important measure of location is the mean or average value...
853 Words | 3 Pages
website characteristics, product pricing, and trust element. Accordingly, we can order these variables in terms of their impact for instance, we may observe from the body of research that the trust element has more weight than product selection in contributing to success thus, we can think of those variables as of an ordinal nature. Ordinal data however, cannot be measured therefore, if we are to construct a survey that would answer particular questions on a Likert scale of ten points, we would be able...
982 Words | 4 Pages
Population Density, Distribution and Growth in Jamaica Name: Janice Jones School: Territory: Jamaica Centre no: Year: 2012 Population Distribution Population Distribution may be defined as the arrangement or spread of people living in a given area; also, how the population of an area is arranged according to variables such as age, race, or sex. How to construct a population distribution map (choropleth) Parish | Area (KM) | Population (‘000s) | Density | Clarendon | 1196...
1279 Words | 6 Pages
The Indian caste system is considered a closed system of stratification, which means that a person’s social status is obligated to which caste they were born into. Caste is a social status determined by a system in society based on one’s position in that position could be low and high depending on the importance attached with that position. Sociologists have defined caste or ‘jati’ as a hereditary, endogamous, a group which is usually localised. It has a traditional association with an occupation...
1807 Words | 5 Pages
information and technology in any organization. List the characteristics of communication and discuss the seven barriers to effective communication. Communication in simple terms is a transfer of information between people, resulting in common understanding between them. According to Newman and Summer , “ Communication is an exchange of facts, ideas, opinions or emotions by two or more persons” Communication has the following characteristics:- It is unavoidable – It is impossible not to communicate...
840 Words | 3 Pages
Mean Girls is a comedy full of memorable quotes, amusing characters, and lots of laughs for its audience, but what many people may not realize is that this movie includes psychological concepts such as role identity, parenting styles, and birth order. Mean Girls is about a girl entering public school for the first time after being homeschooled all of her life and discovering many things about herself and others her age. She becomes involved with a well known school clique called “The Plastics” and...
955 Words | 3 Pages
With the population of people living on planet Earth recently reaching 7 billion, people from all around the world were left celebrating over this remarkable landmark. It is certainly astounding to think that in the early 1900’s the population had only just surpassed the 1 billion mark and now just over a century later the population has multiplied itself approximately 7 times. As great as all of this is scientists, geographers etc… have warned the human race of the problems that we could potentially...
2067 Words | 5 Pages
Use methods of descriptive statistics to summarize the data. Comment on the findings 2. Develop estimated regression equations, first using annual income as the independent variable and then using household size as the independent variable. Which variable is the better predictor of the annual credit card charges? Discuss your findings. 3. Develop an estimated regression equation with annual income and household size as the independent variables. Discuss your findings. 4. 4.What...
936 Words | 6 Pages
Introduction An international entry mode is an institutional agreement necessary for the entry of a company’s products, technology and human capital into a foreign country or market. The reluctance of firms to change entry modes once they are in place, and the difficulty involved in doing so, make the mode of entry decision a key strategic issue for firms operating in today’s rapidly internationalizing market place. The choice of mode will depend on internal characteristics (eg firm size, international...
1458 Words | 4 Pages
Genetically Vigorous Populations Paper Megan Lade University of Phoenix (Online Campus) Niladri Sarker Introduction into Genetic Diversity Genetic diversity provides a species with its form and function. A species genotype refers to their genetic code; what their cells are going to be used for – hair cell, eye cell, muscle cell, etc. A species phonotype refers to the way in which that species gene will be expressed – blonde hair, blue eyes, large muscle tone; which significantly impacts...
1521 Words | 7 Pages
Phoenix Material Rhetorical Modes Quiz Complete the following chart to identify the purpose and structure of the various rhetorical modes used in academic writing. Provide at least two tips for writing each type of rhetorical device. Rhetorical mode Purpose Explain when or why each rhetorical mode is used. Structure Explain what organizational method works best with each rhetorical mode. Tips Provide two tips for writing in each rhetorical mode. Narration The art of telling...
594 Words | 3 Pages
from a given population. The sample mean (x) shows the average value calculated from measurements of a sample. Its main characteristics are: 1. The average of all sample means should equal to the true population mean (µ) 2. The standard deviation shows dispersion of sample means around the population mean. It is known as the standard error of the mean 3. The sampling distribution of the mean is a normal distribution. Uses: The sampling distribution of the means is commonly...
1199 Words | 5 Pages
BES PASS Descriptive Statistics Population - a set of all possible observations. Sample - a portion of a population. We often use information concerning a sample to make an inference (conclusion) about the population. Parameter - describes a characteristic of the population, eg: the population variance Statistic- describes a characteristic of a sample, eg: the sample variance Frequency Distribution and Histograms Class - a collection of data which are mutually exclusive Frequency...
1150 Words | 7 Pages