Let X₁, X2, X3, Xn denote a random sample of size n from the population distributed with the following probability density function: ((0+1)xº, if 0
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- Let X be a random variable with probability density function f(x) = x/8, where x = 1, 2 and 5; 0, otherwise. Find the expected value of x.Let X and Y be two independent continuous random variables with the following probability density functions: f(x) = (1/2)e^(-x/2) for x > 0 g(y) = (1/3)e^(-y/3) for y > 0 What is the probability density function of Z = X + Y?Consider two random variables X and Y whose joint probability density function is given byf_X,Y (x, y) = c if x + y ≤ 1, x ≤ 1, and y ≤ 1,0 otherwise What is the value of c?
- Let X1, X2, and X3 be independent random variables from (-1, 1). Find the probability density function and the expected value of the random variable [X(1) + X(2)]/2.Let x be a random variable with probability density function,f(x) = C (1- x^2), -1 < x < 1 and ‘0’ otherwise. a. Calculate C, F(x) and hence P ( -0.5 < x < 0.5), P (x = 0), and V (x)b. Sketch f(x) and F(x)Let the probability density function of the random variable x bef(x) = { e^2x if x≤0 { 1/x^2 if x≥2 { 0 otherwiseFind the cumulative distribution function (cdf) of X