A researcher records the following scores: 5,3,7,6,2,8,0,and 1.In terms of these data,the sum of the squared differences of scores from their mean is
A)0
B)8
C)32
D)60

Question

Quizplus · Accepted Answer

The sum of squared differences from the mean is calculated by first finding the mean of the scores, then subtracting the mean from each score, squaring the result, and finally summing these squared differences. The mean of the scores is 4, and the squared differences are 1, 1, 9, 4, 4, 16, 16, and 9, which sum to 60.

A Researcher Records the Following Scores: 5,3,7,6,2,8,0,and 1