Question: For the random variable X, it is known that E(X4) = 50, E(2X2 + 7) = 17. Then the variance of the variable Y =

For the random variable X, it is known that E(X4) = 50, E(2X2 + 7) = 17.

Then the variance of the variable Y = X2 equals

(a) 25

(b) 50

(c) 75

(d) 94

(e) 100

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