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Question: questions 1 10 points what is a random variable 2...

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Questions 1. (10 Points) What is a random variable? 2. (5 Points) Why do random variables have sampling distributions? 3. (10 Points) What are the two ways to measure the central tendency of the distribution a random variable? Define them 4. (5 Points) When will the two measures of central tendency be equal to each other? 5. (5 Points) When will the two measures of central tendency be unequal? 6. (10 Points) What is a variance? 7. (5 Points) Which measure of central tendency is the variance related to? 8. (2.5 Points) If two random variables are measured in different units, are the variances directly comparable? 9. (2.5 Points) Assume that you draw two random samples of the same variable from two different populations. If the variance in the sample from population 1 is bigger than population 2, but the means are the same, what does this tell you about the two populations? 10. Use the table to answer the following questions:

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