A sample with M = 85 and s = 12 is transformed into z-scores.After the transformation,what are the values for the mean and standard deviation for the sample of z-scores?
A)M = 85 and s = 12
B)M = 0 and s = 12
C)M = 85 and s = 1
D)M = 0 and s = 1

Question

A sample with M = 85 and s = 12 is transformed into z-scores.After the transformation,what are the values for the mean and standard deviation for the sample of z-scores?​
A)M = 85 and s = 12​
B)​M = 0 and s = 12
C)​M = 85 and s = 1
D)​M = 0 and s = 1

Quizplus · Accepted Answer

When a sample is transformed into z-scores, the new mean is always 0 and the new standard deviation is always 1. Therefore, the correct choice is D, with M = 0 and s = 1.

A Sample with M = 85 and S = 12