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Calculate P [E[X]-2*DE [X] <X <E [X]+ 2*DE [x]], where X has the function f (x)...

Calculate P [E[X]-2*DE [X] <X <E [X]+ 2*DE [x]], where X has the function f (x) = 6x (1-x), 0 <x <1

DE= Standard Deviation

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