Explain sampling, sampling error and sampling distribution with examples. Discuss the importance of sampling. Find the mean and variance of sample.

Q: Find the range, the standard deviation, and the variance for the given samples. 74, 89, 61, 78, 82,…

A: Range and standard deviations

Q: The median has a sampling distribution. Explain why or why not?

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Q: Give concrete examples when you would/would not use the following measures of location: Sample mean,…

A: A measure of central tendency is a summary statistic that describe the central tendency or typical…

Q: Determine whether the data set is a population or a sample. Explain your reasoning.   The number of…

A: Population:Population consists of the complete subjects that are included in the study for making…

Q: Give real life examples of simple random sampling and stratified sampling

A: Sampling is choosing a part of the total population . It is done to draw inferences about population…

Q: Find the range , the standard deviation, the variance for 45, 75, 84, 58, 81, 65 , 98,63,76

A: Range = Maximum - Minimum = 98 - 45 = 53   The standard deviation can be determined using the…

Q: What is the difference between mean, median, and mode? Give examples?

A: Mean:The arithmetic mean (also called the mean) is the most commonly used measure of central…

Q: Explains how population and sample differ?

A: Introduction: Population of interest: The population of interest includes all the individuals of…

Q: People on the street" interviews is example of systematic sampling

A: Answer is Convenience sampling.

Q: what is sample and population ?

A: Population : Population refers to all possible individuals or subjects in a study Or we can say that…

Q: United Arab Emirates 39 i. Find the mean and median averages of the sample of nine countries. ii.…

A: There are type of measures which are used to describe or summarize the data. They are measure of…

Q: Describe a scenario explaining how to find the mean of a sampling distribution and how to calculate…

A: Solution-: Describe a scenario explaining how to find the mean of a sampling distribution and how to…

Q: a) What the value of ‘***’? b) What is meant by Sampling Distribution of  the Mean in the context…

A: The provided values are:

Q: Standardizing If a distribution of raw scores were plotted and then the scores were transformed to z…

A: The value of z-score gives information about the exact locations of the scores relative to all other…

Q: Find the vAriance of the sample data: 191, 215, 76, 262, 93, 163, 162, 268

A: Measure of dispersion measures the spread of the data. Standard deviation indicates how much the…

Q: Explain what is meant by the term “sampling distribution”.

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Q: Explain why the sampling distribution of the sample proj your steps and write down any assumptions…

A: The sampling distribution is the probability distribution of the statistics of the sample obtained…

Q: Describe a scenario explaining how to find the mean of a sampling distribution and how to calculate…

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Q: Explain about the Sampling Distribution of mean 1 less mean 2.

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Q: Is a population proportion a parameter or a statistic? What about a sample proportion? Explain your…

A: Parameter: Any statistical measure based on all units in the population is called Parameter.…

Q: why do we study or use 5 averages in statistics? Elaborate

A: The 5 types of averages we use in statistics are: 1- Arithmetic mean 2-Mode 3- Median 4-Root mean…

Q: Determine whether the data set is a population or a sample. Explain your reasoning. The number of…

A: Population is the collection of information of all units involved in a study. Sample is the…

Q: sampling distribution?

A: The sampling distribution is a probability distribution obtained from a large number of samples with…

Q: Describe a scenario and explain finding the mean of a sampling distribution.

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Q: Find the value of a and b What is the largest value in the dataset? What the is median of the…

A: Disclaimer : “Since you have posted a question with multiple sub-parts, we will solve first three…

Q: The number of writing instruments in some teachers' desks is displayed in the dot plot. Which is…

A: the greatest no. is 12 in the number line as there is a dot on no. 12  mean of this series is =…

Q: (a) One of Statistics assignment, students are required to do a survey to practice for data…

A: Data are the basic material needed for effective statistical inference and decision-making on a…

Q: Is the 50th percentile a typical value? Explain    which one is larger the mean or the median?…

A: Given a problem and a graph we have to write the answer of the problem and explain using the graph…

Q: Explain why the sampling distribution of the sample proportion is assumed to be Normal. Show your…

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Q: Question: The researcher samples 35 children who died of sudden infant death syndrome. This type…

A: Judgmental sampling occurs when the researcher selects the target sample.

Q: Q4:- if you know that data ( 12, 10,12,10, 10,6) find the :- Mode, median, mean, variance and…

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Q: them are Republicans. Do the data comprise a sample or a p Do the results represent a statistic or

A: NOTE: As per the guidelines, we are supposed to solve first question only. a). Population is a…

Q: What is the mean of a sampling distribution? Describe how to calculate it.

A: We need to find mean of sampling distribution

Q: 9.) 20, 16, 17, 14, 12, 9, 6, 10 What is the mean?. What is the median? What is the mode?. What is…

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Q: Briefly explain Sampling Error?

A: The sample does not give exact or accurate information about the population even though the sample…

Q: Summarize your sample data, describing the center, spread, and shape in context.] [Note: For shape,…

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Q: A-level: Without knowing the shape of the population, explain what we can say about the shape of the…

A: HERE GIVEN, 70% of  U.S adults actually drink the cereal milk p =.70 here sample size n = 1012

Q: Briefly explain Random Sampling Error.?

A: A sampling error is a statistical error that occurs when an analyst does not select a sample that…

Q: 3.) 15, 18, 16, 18, 12, 14, 16, 19 What is the mean? What is the median? What is the mode? What is…

A: given data : 15,18,16,18,12,14,16,19 12,14,15,16,16,18,18,19

Q: Describe the sampling distribution of means. What is it used for?

A: The distribution of sample means is defined as the set of means from all the possible random samples…

Q: Mean = 64.57 median = 64.50 mode = 64.09 comment on the shape of the distribution. Give reasons…

A: Given that  Mean = 64.57 median = 64.50 mode = 64.09

Q: Explain step by steb  Consider your clan (family and relatives) as the population. List the members…

A: Sampling is nothing but the technique of selecting individual members from of the…

Q: Explain what it means that a sample must be representative of the population.

A: It is an important part of statistics. It is widely used.

Q: Consider a data set with at least three data values. Suppose the highest value is increased by 10…

A: a) The mean of a data set can be computed by taking the sum of observations and then divided by the…

Q: A pet food company wants to know the number of pets owned by adults ages 21 to 70. The frequency…

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Q: It's one question. Second image is the sample data

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: create a sampling distribution of your data. get the mean, variance, and standard deviation. data:…

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