The quantity is called the pooled variance estimate of the common variance of two unknown but equal population variances. It is the weighted average of the two sample variances, where the weights represent the:
A)sample variances.
B)sample standard deviations.
C)degrees of freedom for each sample.
D)None of these choices.

Question

The quantity  is called the pooled variance estimate of the common variance of two unknown but equal population variances. It is the weighted average of the two sample variances, where the weights represent the:
A)sample variances. 
B)sample standard deviations. 
C)degrees of freedom for each sample. 
D)None of these choices.

Quizplus · Accepted Answer

The Answer of The quantity  is called the pooled variance estimate of the common variance of two unknown but equal population variances. It is the weighted average of the two sample variances, where the weights represent the:
A)sample variances. 
B)sample standard deviations. 
C)degrees of freedom for each sample. 
D)None of these choices.

The Quantity Is Called the Pooled Variance Estimate of the Common