Pooled variance

（重定向自Pooled standard deviation）

In statistics, pooled variance (also known as combined, composite, or overall variance) is a method for estimating variance of several different populations when the mean of each population may be different, but one may assume that the variance of each population is the same. If the populations are indexed $i = 1,\ldots,k$ , then the pooled variance $s^2_p$ can be estimated by the weighted average of the sample variances $s^2_i$

单词	Pooled standard deviation
释义	Pooled standard deviation 英语百科 Pooled variance （重定向自Pooled standard deviation） In statistics, pooled variance (also known as combined, composite, or overall variance) is a method for estimating variance of several different populations when the mean of each population may be different, but one may assume that the variance of each population is the same. If the populations are indexed $i = 1,\ldots,k$ , then the pooled variance $s^2_p$ can be estimated by the weighted average of the sample variances $s^2_i$
随便看	accipiter的意思 accipiter bandage的意思 Accipiter brevipes的意思 Accipiter cooperii的意思 accipiter cooperiis的意思 Accipiter gentilis的意思 accipiter gentilis fujiyamae的意思 accipiter gentiliss的意思 Accipiter gularis的意思 accipiter gularis gularis的意思 Accipiter nisus的意思 accipiter nisus fujiyamae的意思 accipiter nisuss的意思 accipiter的意思 Accipiter soloensis的意思 Accipiter trivirgatus的意思 accipiter trivirgatus formosae的意思 accipiter virgatus fuscipectus的意思 accipitoiliac的意思 accipitral的意思 accipitraries的意思 accipitrary的意思 accipitrid的意思 Accipitridae的意思 Accipitridae的意思