Rare card
Pooled variance
- Value
- 50 W
- Attack
- 717
- Defence
- 574
- Players
- 0
In statistics, pooled variance (also known as combined variance, composite variance, or overall variance, and written σ 2 {\displaystyle \sigma ^{2}} ) 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…
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