Question: Scores on a certain exam are normally distributed with a mean of 78 and a variance of 25. What is the probability of obtaining a

Scores on a certain exam are normally distributed with a mean of 78 and a variance of 25. What is the probability of obtaining a score less than 90?

A. 0.4918

B. 0.9918

C. 0.0082

D. 0.5082

0.9982

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