question archive We have two fair three-sided dice, indexed by i=1,2
We have two fair three-sided dice, indexed by i=1,2
Subject:ManagementPrice: Bought3
We have two fair three-sided dice, indexed by i=1,2. Each die has sides labelled 1, 2, and 3. We roll the two dice independently, one roll for each die. For i=1,2, let the random variable Xi represent the result of the ith die, so that Xi is uniformly distributed over the set {1,2,3}. Define X=X2−X1.
Calculate the numerical values of following probabilities, as well as the expected value and variance of X:
