This is one way of measuring the middle. Let me put that in quotes. The middle, if you had to represent this data with one number, and this is another way of representing the middle. Then finally, we can think about the mode. And the mode is just the number that shows up the most in this data set. And all of these numbers show up once except we have the 23, it shows up twice. And so because 23 shows up the most, it shows up twice, every other number only shows up once, 23 is our mode.