Question Two fair dice are rolled. The sample S contains the 36 combinations of two numbers. For each member (r, s) of S, the random variable X(r, s) = r + s. Find the expected value of the sum of the numbers that come up when two fair dice are rolled.
Question
Two fair dice are rolled. The sample S contains the 36 combinations of two numbers. For each member (r, s) of S,
the random variable
X(r, s) = r + s.
Find the expected value of the sum of the numbers that come up when two fair dice are rolled.