A pair of tetrahedral dice are rolled (see Exercise 30.8). Let X be the sum of the two numbers and let y be the product. Find E(X) and E(Y). You play a game in which you roll a die and you win (in dollars) the square of the number on the die. For example, if you roll a 5, then you win $25. On average, how much money would you expect to receive per play of this game?

For this problem, involving a weighted die. assume that all the odd numbers are equally likely to come up, all the even numbers are equally likely to come up, and the odd numbers are three times as likely to come up as the even numbers. What is the value of w3? What is the value of w4? What is the value of w6?

.5,m Find the value of m. y2 %3D m = x2y4

Given P(B) = 0.38, P(A and B) = 0.26, P(A or B) = 0.45, what is P(A)? Answer in decimal form.  Round to 2 decimal places as needed.