Covariance Bookmark this page Calculate the covariance of each of the following pairs of random variables. Please enter answers according to the standard notation. (a) X~ N (u,0%) and Y = X2 . Please enter in terms of u and o. Cov(X, Y)=
(b) X, Y have the joint probability density function f(x, y) = 1,0 (c) X f (x) = -3/6, 3 ER, 6> 0 and Y = sign (X) Cov(X, Y)=

The table shows population statistics for the ages of best actor and best supporting actor winners at an awards ceremony. the distributions of the ages are approximately bell-shaped. compare the z-scores for the actors in the following situation. best actor best supporting actor muequals42.0 muequals49.0 sigmaequals7.3 sigmaequals15 in a particular year, the best actor was 59 years old and the best supporting actor was 45 years old. determine the z-scores for each. best actor: z equals best supporting actor: z equals (round to two decimal places as needed.) interpret the z-scores. the best actor was (more than 2 standard deviations above more than 1 standard deviation above less than 1 standard deviation above less than 2 standard deviations below) the mean, which (is not, is) unusual. the best supporting actor was (less than 1 standard deviation below more than 1 standard deviation above more than 2 standard deviations below more than 1 standard deviation below) the mean, which (is is not) unusual.