The Variance of a C ² Distribution Is Twice the Value

question 145

True/False

The variance of a c ² distribution is twice the value of its mean.

---

Definitions:

Promotional Campaign

A series of marketing efforts designed to increase awareness or sales of a product or service.

Z Statistic

A type of standard score that indicates how many standard deviations an element is from the mean of its population.

Normal Distribution

A bell-shaped frequency distribution curve that is symmetric about the mean, showing that data near the mean are more frequent in occurrence.

One-tailed Test

A statistical hypothesis test in which the alternative hypothesis specifies a direction of the effect.