Suppose that in a particular sample,the mean is 70.07 and the standard deviation is 10.27.What is the raw score associated with a Z score of 1.88?
A)80.54
B)88.00
C)89.38
D)90.27

Question

Quizplus · Accepted Answer

Z score formula: (X - Mean) / Standard deviation
1.88 = (X - 70.07) / 10.27
One can solve for X to find the raw score associated with the given Z score:
X = (1.88 * 10.27) + 70.07 ≈ 89.38
Therefore, the best choice is C) 89.38

Suppose That in a Particular Sample,the Mean Is 70