It only takes on a finite number of values. Sometimes people say it takes on a countable number of values, but we see he can either make zero free throws, one, or two of the two. And the probability that he makes zero is here, one is here, two is here. And then they also give us the mean of X and the standard deviation of X. Then they tell us if the game costs Anoush $15 to play and he wins $10 per shot he makes, what are the mean and standard deviation of his net gain from playing the game N? All right, so let's define a new random variable N, which is equal to his net gain, net gain. We can define N in terms of X.