Question

A normal distribution of scores has a standard deviation of 10. Find the z-scores

corresponding to each of the following values:
a) A score of 60, where the mean score of the sample data values is 40.

Answer 1

Z-score is 2

Explanation:

a) N (40, 10^2)

Use Z-score formula (can be found in the internet, with miu and sigma symbols)

`z = (60 - 40)/(10) \\ z = (20)/(10) \\ z = 2`