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
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
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
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, rather than answers with words. What is the average number of hours people read every week? 2. Write a hypothesis of what you expect your research...
816 Words | 3 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
What 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...
873 Words | 3 Pages
Air Force Assignment 1. Use appropriate descriptive statistics to summarize the training time data for each method. What 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 |...
1039 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
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
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, rather than answers with words. • What is the average number of hours per week that the ACRO Athletes spend training at the gym? 2. Write a hypothesis of what you expect your research to reveal. Example: Adults 21 years and over watch an average of 2.5 hours of TV per day. • ACRO...
1462 Words | 5 Pages
1. What are descriptive statistics and how do they differ from inferential statistics? INTRODUCTION Statistical procedures can be divided into two major categories: descriptive statistics and inferential statistics. Typically, in most research conducted on groups of people, you will use both descriptive and inferential statistics to analyse your results and draw conclusions. So what are descriptive and inferential statistics? And what are their differences?We have seen that descriptive statistics...
1007 Words | 3 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
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 846, what is the standard deviation? 4...
1292 Words | 4 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
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
Appropriate and Inappropriate Uses of MBTI The MBTI test results can be used in almost every type of work. Employers can use employees results to place the employee based on ability to solve problems, communication skills, marketing traits and other important factors. The results of these tests are derived from employees’ personal preferences rather than their abilities in order to place them in comfortable environments to increase their productivity. In addition, businesses use these MBTI test...
745 Words | 3 Pages
Describe the measures of 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. ...
623 Words | 5 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
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
Questions to be Graded 1. What demographic variables were measured at least at the interval level of measurement? Age and Income, length of labor(hrs), return to work (wk), number of 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...
973 Words | 6 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
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
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
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
have a larger range than the range used for the yaxis on Prosthetic, Inc.’s graph. If the same range was used for both graphs, they would look as follows: Example 2: ABC.com presented that the average blood sugar level before meals for Americans is 142 mg/dL but did not specify how the average was calculated. What they did not share was that the mean, or arithmetic average, was calculated from a sample size of only four people. Of these four people, all of the blood sugar levels (b...
891 Words | 4 Pages
type of data (quantitative - discrete, quantitative - continuous, or qualitative) that would be used to describe a response. Give an example of the data. • Quantitative – Discrete: Data obtained that are discrete numbers. e.g. 1, 2, 3... • Quantitative – Continuous: Data from a population that is assumed to be measured accurately. • Qualitative : Categorization or description attributes of a population. e.g. red, blue,etc • Number of tickets sold to a concert: Quantitative – Discrete....
673 Words | 4 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
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
8 September 2013 What It Means to Be An American If you surveyed one hundred people and asked them the question “What does it mean to be an American?” Chances are you would get one hundred different answers. There is no definite clear-cut definition of an American. To solve this burning question, a lot of information has to be brought forward to the public regarding what is means to represent the United States as a citizen of the country. If one truly wants to know what being a true American...
811 Words | 3 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
humanity has to start thinking about their future. Indeed, the earth’s population is growing at a fast rate and it is coherent that the more we are on the planet, the more resources, like water and food, are needed. Now, we have two ways of dealing with this issue. Either we improve the management of our resources, so in other words, try to work on a worldwide scale in order to have an effect; or we could try slowing down the population growth rate so that we do not run out of resources. We will focus...
1331 Words | 4 Pages
What deems an individual as being “human”? It could range from the relations a person has with others, to contributions an individual has dispensed to a certain field. The most imperative note to be taken when wondering what proclaims a person to being human is that every individual’s definition of a “human” is different. While lives are lived, people are constantly growing and changing. Some might find purpose in life just by focusing on helping themselves; creating the best “me” they can be...
1606 Words | 5 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
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
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
First of all, population is not a very useful measure by itself simply because it fails to account for the size of the land in which the population resides. Some countries like Russia have a very large area while others like Singapore have a very small one. Therefore the appropriate indicator to use in order to make valid comparisons is population density (i.e., population per unit of land area). Using this indicator one would find, for example, that Belgium has a very high population density, Pakistan...
1016 Words | 3 Pages
seems that to support the lifestyle I’m living, it takes 3.4 hectares of the Earth’s productive area and it requires the regenerative capacity of 1.9 planets each year. If everyone lived the same lifestyle as I do, it would take about 1.9 planets each year to sustain the human population – shocking, isn’t it? I try to make a effort to help the environment by purchasing organic food where possible, I don’t eat a lot of red meat products, I try to eat foods that are in season, I drive in a carpool to...
1277 Words | 4 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
What Does It Mean To Be Human? According to the Smithsonian National Museum of Natural History, “Part of what it means to be human is how we became human. Over a long period of time, as early humans adapted to a changing world, they evolved certain characteristics that help define our species today.” Some of these characteristics include, walking upright on two feet, larger and more complex brains, and a social life that not every living organism has or can do. Although this is more of a physical...
1687 Words | 5 Pages
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 latter type can change according...
1643 Words | 4 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
| | | | | | | | | | | | | | | | | 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
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 < 34) = P(0< z < 1) = 0.34 b. What percent of the garages take between 29 hours and 34 hours to erect? P(29 < x < 34) = P(-1.5 < z < 1) = 0.7745 c. What percent...
1076 Words | 5 Pages
Is censorship ever justified, if so, what are its limits? Censorship is a means whereby the information people receive is limited, either wholly or in part by another individual or a group or individuals. Censorship has occurred in varying forms for centuries and happens within all aspects of society; Parents and teachers censor what children see and read, the government censor the information available to the public and everybody, whether realise it or not partake in self-censorship. It is argued...
1494 Words | 4 Pages
What are some of characteristics that you would associate with the American people and their society? Why? The United States of America - country which is home and shelter for almost 300 millions of people, divided into 50 states�. The larges population of many different nations undeniably has many features which are considered as characteristic ones, like obesity, patriotism, mainstream and race diversity. These features are unique for Americans, even though they are present in every other country...
1784 Words | 7 Pages
common outcry, which is justly made on behalf of human rights - for example, the right to health, to home, to work, to family, to culture - is false and illusory if the right to life, the most basic and fundamental right and the condition of all other personal rights is not defended with maximum determination." -- Pope John Paul II What does it mean to be human? Sure, one must have the usual physical features such as fingers, eyes, arms, hands, feet, etc., but what does it really mean? Must the...
1917 Words | 5 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
Week 2 Lesson 3 will discuss the appropriate use of measures of central tendency and variability in describing ungrouped set of data. Topics this Week Organization of Data Measures of Central Tendency Measures of Variability Key Concepts Organization of Data Measures of Central Tendency and Variability The Mean The Median The Mode Skewed Distributions and Measures of Central Tendency Read pages 44-52 of your textbook. Activity 1 With the assigned topic/s to your group, find at least one very...
1722 Words | 7 Pages
What Justice Means to Me Sheila Hester University of Phoenix December 15, 2008 “The quality or characteristic of being just, impartial, or fair: conformity to truth, fact, or reason,” is how Merriam Webster defines justice (Merriam Webster, 2002). One could look in hundreds of different sources only to find a multitude of ways in which to define justice. Justice, in my opinion, is simply doing the right thing at all times, so that individuals and society, as a whole, are impacted and influenced...
826 Words | 3 Pages
What Poverty means to me Have you ever imagined a life where you don’t have the basic essentials to send your five year old daughter to school? This is a reality for many parents living in developing countries across the globe. The definition of poverty changes every day and it vary from place to place, we all have our own definitions of poverty. But to me poverty means lacking the basic human needs which include: clean and fresh water, nutrition, health Care, education, clothing and shelter because...
1387 Words | 3 Pages
Lawrence Cooper The Characteristics of Language Acquisition and Development ECE315: Language Development in Young Children Instructor: Kara Bullock 1-24-11 Language ability starts even before birth and happens in every area of the child’s life. A child absorbs the language that is spoken in their environment with characteristics such as the tonal quality, the syntax, and the usages of that language. A child can learn languages which are spoken by their parents. The child...
1406 Words | 4 Pages
EXERCISE 11 1. What demographic variables were measured at least at the interval level of measurement? Age (yrs), Income (annual)($), Length of labor (hrs), Return to work (wks), and Number of hours working per week were measured at least at the interval level of measurement 2. What statistics were used to describe the length of labor in this study? Were these appropriate? The variable length of labor were used to describe by ratio data that can be described by using mean, range, and standard...
600 Words | 3 Pages
What is causing the decrease of rhinoceros population? L Suarez Science Ms Secada Date 5th Period 2 What is causing the decrease of rhinoceros population? Rhinoceros, often abbreviated as rhino, is a group of five surviving species of odd-toed ungulates in the family Rhinocerotidae. Two of these species are native to Africa and three to Southern Asia. Rhino species size comparison: Indian Rhino, over 1.8m, White Rhino, 1.8m...
1508 Words | 9 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
measuring central tendency, so all studies use descriptive statistics to present an appropriate use of statistical tests and the validity of data interpretation. Although descriptive statistics do not allow general conclusions and allow only limited interpretations, they are useful for understanding the study sample and establishing an appropriate framework for the further analysis in the study. Further analysis using appropriate statistical methods allows the researchers to establish correlations between...
1124 Words | 3 Pages
result.) Exercise 11 (4 points per question) 1. What demographic variables were measured at least at the interval level of measurement? Age, Income, Length of labor, Return to work, and Number of hours working per week. 2. What statistics were used to describe the length of labor in this study? Were these appropriate? Sample size, Median and Standard Deviation were used to describe the length of labor in the experimental group and Population, Median, and Standard Deviation were used to describe...
1467 Words | 5 Pages
What does truth mean? Truth can mean many different things, to different people. I believe, that truth is what people accept as being correct when it can not be proven factually. "It is a relationship that holds that holds between a proposition and the corresponding fact"(Truth[Inernet Encyclopedia of Philosophy]). "According to, The American Heritage Dictionary of the English Language, truth is conformity to knowledge, fact, actuality, or logic." There are three major competing theories of truth...
929 Words | 3 Pages
URS 1006 31 March 2014 City Title What is a city? People often confuse a city for a town. Merriam-Webster definition of a city is “A place where people live that is larger or more important than a town: an area where many people live and work.” (Merriam Webster definition). The definition of a town is “an urban area that has a name, defined boundaries, and local government, and that is generally larger than a village and smaller than a city.” The official definitions of these terms do not...
961 Words | 3 Pages