A researcher computes the definitional formula for SS and finds that .If this is a sample of 12 scores,then what would the value of sample variance be using the definitional formula?
A) 3.7
B) 4.0
C) 44
D) not possible to know because the scores are not given

Question

Quizplus · Accepted Answer

The formula for the sample variance using the definitional formula is SS divided by (n-1), where SS is the sum of squared deviations from the mean. The question provides the value for SS as 44. Therefore, the sample variance would be 44/(12-1) = 4.

A Researcher Computes the Definitional Formula for SS and Finds