Suppose you have a set of normally distribution data where the mean is 120 and the standard deviation is 15.What score is located at -3 $S_{X}$ ?
A)75
B)105
C)165
D)90

Question

Quizplus · Accepted Answer

A score located at -3 $S_{X}$ (standard deviations) from the mean in a normally distributed set of data can be calculated as: mean + (-3)(standard deviation) = 120 + (-3)(15) = 120 - 45 = 75.

Suppose You Have a Set of Normally Distribution Data Where SXS_{X}SX​

Suppose You Have a Set of Normally Distribution Data Where $S_{X}$