If Z1, Z2, Z3 are independent and identically distributed, such that Zi--Geom(0.4) for i=1,2,3. What is P(Z1+Z2+Z3=7)?
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If Z1, Z2, Z3 are independent and identically distributed, such that Zi--Geom(0.4) for i=1,2,3. What is P(Z1+Z2+Z3=7)?
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- The joint pmf of X and Y is f(x, y) = 1/6, 0 ≤ x+y ≤ 2, where x and y are nonnegative integers. Compute Cov(X, Y) and determine the correlation coefficient.To test this null hypothesis, we compute t using a special case of the formula. state the formula?Number 7 Identify if homo, varsep, exact, linear in z, linear in t, Bernoulli in z and bernoulli in t, and find the DE
- 9, 10, 19, 20 using Gauss-Jordan ElimiSuppose {X1, X2, …, X7, Y} are independent RVs. Each Xj is Rayleigh with mean pi/2 and Y = P(2) is Posson. Let (X1, …, X7) iid and find 1. E(X) 2. Var(X) 3. E(X-2Y) 4. Var(X-2y)Assume the JPDF of (?, ?) is 1, 1 0 , 0 0 ( , ) , else x x f x y y y , solve (1) the CDF and the PDF of max {?, ?} (2) the CDF and the PDF of min {?, ?}
