Zero times anything is just a zero, so one times 0.15 is 0.15, two times 0.4 is 0.8, three times 0.25 is 0.75, and then four times 0.1 is 0.4. And so we just have to add up these numbers. So we get 0.15 plus 0.8 plus 0.75 plus 0.4, and let's say 0.4, 0.75, 0.8, let's add them all together, and so let's see, five plus five is 10, and then this is two plus eight is 10, plus seven is 17, plus four is 21. So we get all of this is going to be equal to 2.1. So one way to think about it is, the expected value of x, the expected number of workouts for me in a week, given this probability distribution, is 2.1. Now you might be saying, wait, hold on a second. All of the outcomes here are whole numbers.