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x -4 -3 -2 -1 0 P(X = x) 0.2 0.1 0.2 0.1 0.4 Find the expected value. Find the variance. Find the standard deviation.

x -4 -3 -2 -1 0 P(X = x) 0.2 0.1 0.2 0.1 0.4

Find the expected value.

Find the variance.

Find the standard deviation.

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