To obtain the _____ of a group of scores, one must find the difference of each score from the mean, square each difference, find the average of this total, and, lastly, take the square root of this average.
A)standard deviation
B)range
C)correlation coefficient
D)median

Question

Quizplus · Accepted Answer

The method described is the formula for calculating the standard deviation of a set of scores. The other options do not involve finding the difference from the mean and squaring the differences.

To Obtain the _____ of a Group of Scores, One