Question: The time, in hours, that a student needs to complete a Mathematics exam is a random variable X with density function What is the expected

The time, in hours, that a student needs to complete a Mathematics exam is a random variable X with density functionf(x) = = { 0, 6(x 1)(2x), 1

What is the expected value and the variance of X?

f(x) = = { 0, 6(x 1)(2x), 1

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