Question: 20. Let the probability density function of a random variable X be Show that Use this to calculate E(X) and Var(X). Then apply Chebyshevs inequality.

20. Let the probability density function of a random variable X be

f(x) = x 0. n!

Show that

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image text in transcribed

Use this to calculate E(X) and Var(X). Then apply Chebyshev’s inequality.

f(x) = x 0. n!

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