Answer Happy

Tu 2 ✪ Given below is a bivariate distribution for the random variables z and y. f(x,y) 0:1 a. Compute the expected value and the variance for z and y. E(z) = E(y) = Var(z) = Var(y) = b. Develop a probability distribution for 2+ y (to 2 decimals). z+y f(x + y) 150 70 30 27 290 0.9994 110 c. Using the result of part (b), compute E(z+y) and Var(z+y). ** 0.4 0.5 z 70 30 40 Y 80 40 70 E(x + y) = Var(z+ y) = d. Compute the covariance and correlation for a and y. If required, round your answers to two decimal places.
b. Develop a probability distribution for 2+ y (to 2 decimals). x+y f(x + y) 150 70 * 110 c. Using the result of part (b), compute E(x + y) and Var(z+y). ** E(x + y) = Var(z + y) = d. Compute the covariance and correlation for a and y. If required, round your answers to two decimal places. Covariance = Correlation The random variables z and y are Select your answer t e. The variance of the sum of z and y is Select your answer : By how much? - Select your answer- the sum of the individual variances.