Question

Consider a normal distribution with mean 17 and standard deviation 4.

a) Find the z-score for x=22.

b) How many standard deviations from the mean is x=22?

Answer 1

a) 1.25

b) 1.25

Step-by-step explanation:

a) z-score for x=22:

(22-17)/4 = 1.25

b) 1.25, that's exactly what z-score means