And so once again, we did all that math in the previous video, but here you can see that confidence intervals, calculated the way that we've calculated them, actually do a pretty good job of what they claim to do. That if we calculate a confidence interval based on a confidence level of 95%, that it is indeed the case that roughly 95% of the time, the true parameter, the population proportion, will be contained in that interval. And I could just draw more and more and more samples. And we can actually see that happening. Every now and then for sure, you get a sample where even when you calculate your confidence interval, the true parameter, the true population proportion is not contained. But that is the exception that happens very infrequently. 95% of the time, your true population parameter is contained in that interval.