a. Explain how a z-score identifies an exact location in a distribution with a single number b. For a population with a standard deviation of s 5 20, find the z-score for each of the following...

a. Explain how a z-score identifies an exact location in a distribution with a single number

b. For a population with a standard deviation of s 5 20, find the z-score for each of the following locations in the distribution.

1. Above the mean by 5 points