So let's divide by four. And so this is going to be equal to 4 plus 5 is 9, plus 6 is 15, plus 1 is 16. So it's equal to 16 over 4, which is 16 divided by 4 is equal to 4. So the mean number of bubbles blown is 4. And I can do that. Let me actually do this with a bold line right over here. This is the mean number of bubbles blown.