Consider the following hypothetical scores: 21,25,37,38,39,42,44,45.Which value is closest to the variance?
A)9
B)19
C)24
D)77

Question

Quizplus · Accepted Answer

The variance is calculated by finding the mean of the scores, then finding the squared differences from the mean, and finally averaging those squared differences. The mean of these scores is 36.375. The squared differences are 237.14, 129.39, 0.14, 2.64, 6.89, 31.64, 57.14, and 74.39. The average of these squared differences is approximately 77.

Consider the Following Hypothetical Scores: 21,25,37,38,39,42,44,45