Consider the discrete random variables X1 and X2 with joint probability function (PF):
What is the variance of X1 ?
What is the value of cov(3X1,4X2) ?.
Consider the discrete random variables X1 and X2 with joint probabili.pdf
1. Consider the discrete random variables X1 and X2 with joint probability function (PF):
What is the variance of X1 ?
What is the value of cov(3X1,4X2) ?