Imagine a population consisting of 1,500 values that are normally distributed around a mean of 60, which exhibits a standard deviation of 8. To the closest integer, how many values in the population are between 58 and 65?

Question

Quizplus · Accepted Answer

The z-score for a value of 58 is (58 - 60) / 8 = -0.25. The z-score for a value of 65 is (65 - 60) / 8 = 0.625. The area under the normal curve between these two z-scores is 0.502, which corresponds to 502 values in the population.

Imagine a Population Consisting of 1,500 Values That Are Normally