There are 100 scores in a distribution of test scores and the average deviation (AD)is 12.The AD of 12 tells us that the 100 scores in this distribution varied,on average
A) 12 points from the mean.
B) 12 points from each other.
C) 12 points from 100.
D) None of these

Question

Quizplus · Accepted Answer

The average deviation (AD) tells us how far, on average, each score in the distribution is from its mean. So, an AD of 12 means that, on average, each score in the distribution is 12 points away from the mean. Therefore, option A is the correct choice as it states that the 100 scores in this distribution varied, on average, 12 points from the mean.

There Are 100 Scores in a Distribution of Test Scores