(a) On a normal distribution of exam scores, Crystal scored at the 10th percentile, so she claims…

(a) On a normal distribution of exam scores, Crystal scored at the 10th percentile, so she claims that she outperformed 90% of her class. Why is she correct or incorrect? (b) Ernesto’s score is in a tail of the norml curve, so he claims to have one of the highest scores. Why is he correct or incorrect?

 

 

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