Question: Consider the following probabilities x -4 -3 -2 -1 0 1 2 3 4 p(x) .02 -- .10 .15 .30 .18 .10 .06 .02 What

Consider the following probabilities

x -4 -3 -2 -1 0 1 2 3 4

p(x) .02 -- .10 .15 .30 .18 .10 .06 .02

What is the variance 2 ?

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