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1. The average score of a statistics class was 71 with a standard deviation of 10. a. What is the z score of a student

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1. The average score of a statistics class was 71 with a standard deviation of 10. a. What is the z score of a student with a grade of 68? b. What is the z score of a student with a grade of 80? 2. Using the same data in #1 answer the following: a. Approximately 68% (one standard deviation) of the scores are between and b. Approximately 95% (two standard deviation) of the scores are between and

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