Which of the following is true about the computational formula for variance?
A)The computational formula will always produce the same solution as the definitional formula (give or take rounding errors).
B)It is a short-cut method for calculating variance when the population or sample size is large.
C)It is derived mathematically from the definitional formula.
D)all of the above

Question

Quizplus · Accepted Answer

The computational formula for variance is mathematically equivalent to the definitional formula, making it a shortcut for large datasets, and it is derived from the definitional formula.

Which of the Following Is True About the Computational Formula