Given a normal distribution with mean 120 and standard deviation 5, find the number of standard deviations the measurement is from the mean. Express the answer as a positive number.
-125
A) 2
B) 3
C) 0
D) 1

Question

Quizplus · Accepted Answer

1The number of standard deviations a measurement is from the mean is calculated by subtracting the mean from the measurement and dividing by the standard deviation. For a measurement of 125, with a mean of 120 and a standard deviation of 5, the calculation is (125 - 120) / 5 = 1. This means the measurement is 1 standard deviation from the mean.

Given a Normal Distribution with Mean 120 and Standard Deviation