Question: If the probability density of the random variable X is find the probability that X will take a value within two standard deviations of its

If the probability density of the random variable X is

fx(x) = [30x(1-x) 0 (0 < x < 1) (otherwise)

find the probability that X will take a value within two standard deviations of its mean.

fx(x)= [30x(1-x) 0 (0 < x < 1) (otherwise)

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