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For the random variable X with probability density function f(x) = (x−3)2 /5; x = 3, 4, 5, the var

Question

For the random variable X with probability density

function f(x) = (x−3)2 /5; x = 3, 4, 5, the variance of X is:

A 2/25 Correct Answer Incorrect Answer

B 4/5 Correct Answer Incorrect Answer

C 4/25 Correct Answer Incorrect Answer

D 2/5 Correct Answer Incorrect Answer

Solution

The correct answer is C

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