Question #302931

The results of the nationwide aptitude test in mathematics are normally distributed with mean=63 and standard deviation =5 . What is the 97.5th percentile?

1
Expert's answer
2022-02-28T17:17:32-0500

P(Z<z)=0.975→z=1.96.P(Z<z)=0.975\to z=1.96.

x−635=1.96→x=1.96∗5+63=\frac{x-63}{5}=1.96\to x=1.96*5+63=72.8.


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