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Which of the following scores is better relative to other students enrolled in the course? Explain...

Which of the following scores is better relative to other students enrolled in the course? Explain why.

a) A psychology grade of 85; the mean grade for the psychology is 92 with a standard deviation of 3.5

b) An economics grade of 67; the mean grade for the economics is 79 with a standard deviation of 8

c) A chemistry grade of 62; the mean grade for the chemistry is 62 with a standard deviation of 5

Math   Statistics-And-Probability   
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