Which of the Following Is True About the Computational Formula

question 17

Multiple Choice

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 shortcut method for calculating variance when the population or sample size is large.
• C) It is derived mathematically from the definitional formula.
• D) All of these.

---

Definitions:

Inbound Systems

Technologies or processes focused on managing incoming goods or information into an organization.

Exponential Smoothing

A forecasting technique that applies diminishing weights on past observations to predict future values, often used in inventory and sales forecasting.

Weighted Moving Average

A calculation that averages a set of numbers with emphasis given to certain values in the set.