Question ? When statisticians describe pooling the variances, they mean: taking the average of the two variances accounting for sample size. O adding the variances of the two samples. adding the standard deviations of the two samples. taking the average of the two variances disregarding sample size.

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When statisticians describe pooling the variances, they mean:
taking the average of the two variances accounting for sample size.
O adding the variances of the two samples.
adding the standard deviations of the two samples.
O taking the average of the two variances disregarding sample size.
Transcribed Image Text:Question ? When statisticians describe pooling the variances, they mean: taking the average of the two variances accounting for sample size. O adding the variances of the two samples. adding the standard deviations of the two samples. O taking the average of the two variances disregarding sample size.
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