So let's imagine all of the data in a population, and I'm just going to plot them on a number line. All the data. So this is my number line, this is my number line, and let me plot all of the data points in my population. So this is some data, this is some data, here's some data, and here is some data here, and I can just do as many points as I want. So these are just points on the number line. Now let's say I take a sample of this. So this is my entire population.