Quest ion 4: Let X and Y be continuous random variables with joint probability density function 2 for BI 5 :r: c: y 5 1 0 otherwise ay} ={ It is given that 1 1 E{X} = 51 and m-r{X} = E = Ln-r"). a. Using the information that E{Y|X = I) = $1 nd ED"). b. Find the correlation of {X1 Y}