Question

Suppose that scores on a particular test are normally distributed with a mean of 110 and a standard deviation of 15. What is the minimum score needed to be in the top 20% of the scores on the test? Carry your intermediate computations to at least four decimal places, and round your answer to one decimal place.

Answer 1

Given:

mean of 110 and a standard deviation of 15.

Required:

Carry your intermediate computations to at least four decimal places, and round your answer to one decimal place.

Step-by-step explanation:

Since we know the formula of