Standard Deviation of X

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Suppose that is a random variable with

Var(X)=0.25

Var(X)=0.25

What is the standard deviation σof X?
Apr 13th, 2015

standard deviation is the square root of the variance

so, if Var(X) = 0.25

then, standard deviation = √0.25 = 0.5

Apr 13th, 2015

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Apr 13th, 2015
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Apr 13th, 2015
Jun 28th, 2017
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