So, and he'll do this for 50 samples. And each dot here represents that sample statistic, so it shows that four times we got a sample median. In four of those 50 samples, we got a sample median of 20. In five of those sample medians, we got a sample median of 10. And so what he ends up creating with these dots is really an approximation of the sampling distribution of the sample medians. Now, to judge whether it is a biased or unbiased estimator for the population median, well, actually, pause the video. See if you can figure that out.