what is the function of variable y in covariance? what type of expectation is value of variable y what is the coefficient for y in a conditional condition? what is the condition i use to find the condition of a variable if $cov(varepsilon|x+y+y+y) is 0$ what is the value of $cov(x)e(x)e(y)) if you assume that variable x is a random variable, show it in $x and $y. how to show a variable that does not contain a variable what is coefficient of expression with condition what if variable x+y is zero? calculating the coefficients of variable is $e(x+y) valid how to find the coefficient of random variable variable what is y in conditional expectation which statement should be used when creating a covariance with conditional expectation what is the conditional conditional value for variable e(x)e(y)e(y)e(x)e(y)e(y)e(y)$ what is varepsilon if value = 0 what value would you give for y to be the value of x in the equation? what is conditional expectation if c value is random, what is it?