5. Suppose that X is a discrete random variable with probability density function p(x) = cx², x = 1, 2, 3, 4. (c) Find Var(X). Select one: O a. 18.4 O b. 354 O c. none O d. 342.8

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Q: Q1. Given that (x, y) = (3x+2y)/5k if x = 1,5 and y = -2,3, is a joint probability distribution…

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A: Given,f(x)=cX     ;   1≤X≤20        ;   otherwise

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Q: f (x) { kx, -1 < r < 1 0, kx², -1 <x < 1 = elsewhere

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Q: 6. [Maximum mark: 5] The following table shows the probability distribution of a discrete random…

A: Thank you 😊

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A: According to the given information, we have E(X)=3E(Y)=4V(X)=10V(Y)=20

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Q: 1. If the joint probability distribution of X and Yis given by f(x, y) x+y for x = 0,2,3; y = 0,1,2…

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Q: .Given that (x, y) = (x+2y)/k if x = -2,1 and y = 3,4, is a joint probability distribution function…

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