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Variance
The variance of X is:
$$\operatorname{Var}(X)=E[(X-E[X])^2]$$
Usage
- Used to measure the spread of a random variable around its mean.
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Variance
The variance of X is:
$$\operatorname{Var}(X)=E[(X-E[X])^2]$$
Usage
- Used to measure the spread of a random variable around its mean.
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