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X is random variable with the probability function f(x) = kx^2 for x = 3,4,5, 7. Find appropriate value of k, mean (µ),and variance (σ^2)?

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  • X is random variable with the probability function f(x) = kx^2 for x = 3,4,5, 7. Find appropriate value of k, mean (µ),and variance (σ^2)?


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