Answer to Question #327023 in Statistics and Probability for Cong

Question #327023

In a Math test, the mean score is 48 and the standard deviation is 7. Assuming normality, what is probability that a score picked at random will lie above score 55?

Expert's answer

"P(X>55)=P(Z>\\frac{55-48}{7})=P(Z>1)=1-P(Z<1)=0.1587."

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