Question

Consider a normally distributed data set with a mean of 154 and a standard deviation of 9.8. If one of the observed values is 176, what is the z score?

A.
+3.36
B.
-2.24
C.
+2.24
D.
-22.00
E.
+22.00

Answer 1

+2.24

Explanation:

(176-154)/9.8

Answer 2

The answer is +2.24

Explanation:

(176-154)/9.8