Question: The cdf for a random variable Y is defined by FY (y) = 0 for y < 0; FY (y) = 4y3 3y4 for

The cdf for a random variable Y is defined by
FY (y) = 0 for y < 0; FY (y) = 4y3 − 3y4 for 0 ≤ y ≤ 1; and
FY (y) =1 for y>1. Find P (1/4 ≤Y ≤ 3 4) by integrating fY (y).

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