For a population with a standard deviation of s 10 what is

For a population with a standard deviation of s = 10, what is the z-score corresponding to a score that is 5 points below the mean?

.5

1

-.5

-1

Solution

5/ 10 = 0.5 but like is below

then is negative

so what is the z-score corresponding to a score that is 5 points below the mean?

-0.5