a. Determine the expected value of X. b. Determine the expected value of Y. c. Determine the expected value of Z=X+Y.
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- Find the marginal probabilities of each random variable X and Y in thefollowing table:- Compute the covariance and the correlation of these two random variables.A) Complete the Table x P(X = x) x · P(X = x) 0 0.3 1 0.4 2 3 0.2 B) Find the probability that X = 2. C) Find the expected valueLet X be a random variable with the following probability distribution. Value x of X P(X=x) 10 20 30 40 50 0.10 0.30 0.20 0.25 0.15 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X) of X. E (X) = 0 (b) Find the variance Var(X) of X. Var(x) =
- Q2Let X be a random variable with the following probability distribution. Value x of X P(X=x) 2 0.05 3 0.05 4 0.05 5 0.85 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E(X) of X. E (X) = 0 (b) Find the variance Var(X) of X. Var(x) = ☐ Check B X G3 500 0≤x≤ys 10 1. Find the expected value of Y. f(x, y) =
- 4. An insurance company sells an automobile policy with a deductible of one unit. Let X be the amount of the loss having pmf 0.9 f(x) = x = 0 x = 1,2,3,4,5,6 where c is a constant. a) Find c. b) Find the expected value of the amount the insurance company must pay.Let X be a random variable with the following probability distribution. Value x of X P(X=x) 3 4 5 5.0 6 0.10 0.05 0.40 0.45 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X) of X. E (X) = 0 (b) Find the variance Var(X) of X. Var(x) = 0Assume that daily evaporation rates (E) have a uniform distribution with a = 0 and b = 0.35 inches/day. Determine the following probabilities:Pr (E ≥0.1) Pr (E ≤ 0.22) Pr (E = 0.2) Pr (0.05 ≤ E ≤ 0.15
- Calculate the expected value of X, E(X), for the given probability distribution. x 2 4 6 8 P(X = x) 7 20 11 20 1 20 1 20 E(X) =Let Xbe a random variable with the following probability distribution. Question table Value of X P( X=x) 0 0.05 10 0.40 20 0.20 30 0.10 40 0.25 A. Find the expectation E(X) of (X) E(X)=? B. Find the variance VAR(X) of (X) VAR(X)=?Let X be a random variable with the following probability distribution. Value x of X P X= x 3 4 5 6 7 0.05 0.35 0.25 0.05 0.30 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X) of X. E (X) = 0 (b) Find the variance Var(X) of X. Var(x) = 0