The mean score on a test of agreeableness is 27 with a stand

The mean score on a test of agreeableness is 27 with a standard deviation of 8. Rudolfo got a score of 25 on this test. What is his z score?

A) -.25

B) -.40

C) -2.00

D) there is not enough information

Solution

his Z score is ((his score on test)-(mean score))/(standard deviation)=(25-27)/8=-0.25 [option A is the answer]