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A random variable X has the p.d.f. f(x) = [ 0, x < -1; 1 + x, -1 <= x <= 0; ...
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A random variable X has the p.d.f.
f(x) = [ 0, x < -1; 1 + x, -1 <= x <= 0; 1 – x , 0 <= x <= 1; 0, otherwise ].
What is the standard deviation of X?
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