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CBSE - IX Maths Solved Questions
Question 1
If the sides of a triangle are 13 cm, 14 cm and 15 cm respectively then its area is ____cm2. A) 80
B) 82
C) 84
D) 88

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Question 2
If the sides of a triangle are 150 cm, 120 cm and 200 cm, then its area is ____ cm2. A)
B)
C)
D)

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Question 3
If two sides of a triangle are 8 cm, 11 cm and the perimeter is 32 cm, then its area is ____ cm2. A)
B)
C)
D)

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Question 4
If two sides of triangle are 8 cm and 11 cm and its perimeter is 64 cm, then its area is ____cm2. A)
B)
C)
D)

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Question 5
If two sides of a triangle are and the perimeter is 42 cm, then its area is ____cm2. A)
B)
C)
D)

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Question 6
If the sides of a triangle are 40 cm, 32 cm and 24 cm, then its area is ____cm2. A)
B)
C)
D)

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Question 7
If the sides of a triangle are 25 cm, 17 cm and 12 cm respectively, then its area is ____cm2. A) 80
B) 82
C) 90
D) 84

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Question 8
If the sides of a triangle are 13 cm, 12 cm and 5 cm, then its area is ____cm2. A) 80
B) 82
C) 30
D) 84

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Question 9
The sides of a triangle are 12 cm, 13 cm and 15 cm respectively, then its area is ____ cm2. A)
B)
C)
D)

View Solution
Question 10
If the perimeter of an isosceles triangle is 30 cm and each of the equal sides is 12 cm, then its area is ____cm2. A)
B)
C)
D)

...immature thrill seeker to that of being trustworthy and user friendly.
METHODOLOGY
A quantitative approach will be utilized to meet the objective highlighted in the proposal. A detailed questionnaire will be developed with company feedback and the participants in the survey will be approached via multiple methods.
50% of the survey will be online, presented to people visiting the company websites, and few other commonly accessed tourism sites.
30% of the sample population will be approached via telephone. The names will be obtained from sites offering information on frequent travelers.
20% of the questionnaires will be more focused towards businessmen and youth, We might target 10% of the questionnaires to specific business clients that deal with Huella Hong Kong regularly and the other 10% to young travelers . Young travelers could be recently married couples or graduating students taking a break after completing education.
SAMPLING
The target population shall include people from the age group 18-75. A sample of 5,000 questionnaires will be used to draw conclusions about the market.
Systematic sampling will be used for online survey. Every 5th visitor to the site will be requested to fill the questionnaire. Filters will be used to prevent same people to fill multiple.
Judgment sampling will be used for telephone and business and youth (20% focused) survey.
TIMING
A total of six months will be used to collect and...

...…………………………………………………. 12 b. Sample …………………………………………………………... Research tools ………………………………………………….... 12 c. 13 d.
Administration of research tool ………………..………………….13 e. Data analysis ……………………………………………………... 14 f. Limitation and assumptions ………………………………………. 15 References ………………………………………………………………… 16
Methodology
a) Research design The research will employ a survey kind of research design where data will be collected from the employees. This kind of research design will best suited to collect the data since it will give the researcher a chance to collect primary data from the organisation. In his regard the researcher will be able to interact with the staff in the organisation which will make it possible to understand the dynamic factors of the research by having a first hand experience. One advantage with the survey kind of research design is that the researchers will have a chance of experiencing the culture of the organisation in practice rather that getting it from the secondary sources. b) Sampling and sample size The sample frame that will be used for the research will be the members of the staff of Penine foods. In the regard the research will collect data from both the worker and the managers of Penine Foods and not from external staffs. This is because the research is supposed to evaluate the effects of culture in those particular organisations. This will help to make the data collected more reliable and accurate. In...

...“population refers to the entire group of people, events, or things of interest that the researcher wishes to investigate” (2003, p. 25). For this assignment the data sets were provided in a table by the university student library. Upon examination of the data, the characteristics of the population in this study can be evaluated. There is ample information with the data sets for the researcher to compare data and make determinations for wages earned by men and women when 11 variables exist. The population sample provides the team information relative to amount of annual wages earned, gender, education, work experience, and union membership.
Sekaran suggests that an appropriate research sample size should contain between 30 and 500 subjects and that the sample design is important for determining the size of the sample (2003). This data set includes 100 subjects composed of 50 men and 50 women. The type of sampling design used is an important factor when determining sample size. In this scenario experiment quota sampling provides the means and opportunity to succeed in researching wages earned by men and women. According to Sekaran, quota sampling uses a predetermined proportion of subjects from different subgroups (2003).
Bias influences decision-making and the perception of the integrity of research sampling. When bias is a factor a decision or perception becomes...

...
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. Random sampling aides research in that it applies experimental design to the selection process and is the fairest means of sample collection, providing equal chance to the members of a given population being signified.
Populations
Populations, as defined by Triola and Triola (2006) are “a complete collection of all elements (scores, people, measurements and so on) to be studied. The collection is complete in the sense that it includes all the subjects to be studied. To serve as an example, all Kansan 9th graders will functionally be considered for a population. The data collected from the population are referred to as parameters and therefore are descriptive. The subjects or observations within the population are labeled with an N, or in the case of the example, figuratively, would be N=6000. The first function in this type of data collection is to have identified the target population, which has been done...

...the larger population from which the sample was drawn. You should not apply your results to those subjects only who participated in the study. Applying findings from a sample to a larger population is known as generalization.
As the results of an experiment are to generalize the population, so we must be very careful while selecting the sample. The optimal procedure is to identify the population and then draw a random sample of individuals for participation in the experiment. In random sampling, every person in the population must be eligible for population. They also should get an equal chance for being chosen.
Random sampling is constructed by placing the name of every potential participant and then drawing out a specified number of names at one time. But in practice, this is not. Usually college students are used as they are easily available. The adverse effect of this is, it hampers the external validity or generality of experiment and the chances are that the opinion of non-college population may differ in numbers of ways of college students. Therefore, one should not limit themselves to college students only.
Techniques of obtaining representative sampling is:
a. Simple random sampling: Select a random number of individual from population. For eg; a golf ball. To combat problems here, select a large sample as it is more likely to represent all segments.
b. Stratified sampling: It provides...

...formulating theories) through data collection. Sample Data Sample data basically is a subclass of populations such as humans, animals and even objects; it often goes as far as Physical Science and the Scientific Method. Within statistics, known as survey methodology, Sample Data concerns itself in the selective method regarding the subset of inhabitants or humans from within any particular population. This is done in order to approximate the uniqueness of an entire populace like weight, gender, color, religion, job types, etc. Sample Data surveying is also extremely cost effective opposed to surveying an entire
population. In short, this form of Sample Data is, from my own opinion, nothing more than probability theories. Population Data On the other hand, Population Data is just that; a means or census aimed at providing Data specifically based on the demographics, collective distinctiveness of a populace, individualism, and the primary starting point regarding population estimations for Federal and State
Governments. This form of data supports federal and municipal legislations throughout our government and agencies. Examples amongst such usage of this particular “census data” would include educational institutes, academic researches, languages and overall population approximations and prognostications. How is a sample related to the population? A part (part being the key word here)...

...The housing market was once known as the biggest money making industry in the United States. Housing, which was the way our economy made the majority of their money, is now contributing less to the economic expansion. The decline in the housing market has raised many concerns throughout the entire country. This paper provides statistics on the United States population housing market, economy, demographical characteristics, demographical area and the large amount vacant property. Included in this research document are analysis of data sets, charts and graph to help interpret the housing crisis.
Research Problem
The purpose of this research is to determine why the housing market is in a downfall and if there is a way to get homeowners to see the value of their property. Many question the reason of the downfall and who does it affect. The one thing we know for sure is that the economic recession has left a big mark on society in the real estate industry.
Descriptive statistics
The measures of central tendency can be measured by arithmetic mean, median and mode. The most common of the three is the arithmetic mean. Since the United States population has over one million people data collected from a large population can result in a 95% confidence level. Based on a survey done in the United States, at least three homeowner out of 1,000 are losing their homes to foreclosure. The arithmetic mean is a list of numbers which is the sum of all the members divided...

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