Statistics

Statistics

Chapter 7 Practice Problems

Complete the following practice problems to test your understanding. Check your work with the solutions provided.

You are given the following grades from a sample of the statistics class: 75, 77, 82, 85, 93. Use this data set to answer the following questions:

1. What is the mean?

2. What is the variance?

3. What is the standard deviation?

4. What is the standard error of the mean?

Answer key is found on page 84.

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