Which of the following describes the definitional formula for variance?
A) It is stated in terms of how variance is defined.
B) It is computed using SS in the numerator.
C) It is a measure of the average squared distance that scores deviate from their mean.
D) All of these.

Question

Quizplus · Accepted Answer

The definitional formula for variance is captured in option A - it is based on the definition of variance. The formula involves subtracting each score from the mean, squaring the difference, summing these squared differences, and dividing the sum by the total number of scores minus one. This is captured by option B. Finally, option C is correct in noting that the variance is essentially the average squared distance that scores deviate from their mean. Therefore, all of these options are correct, making D the best answer.

Which of the Following Describes the Definitional Formula for Variance