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1. 100 students take a test. The average mark is 65 with a variance of 144. Assume that the scores are normally distributed. a. Calculate

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1. 100 students take a test. The average mark is 65 with a variance of 144. Assume that the scores are normally distributed. a. Calculate z scores for student A who scored 89 and student B who scored 53. b. How many students do you think scored above student A? C. How many students do you think scored above student B

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