This video is about probability. In the video, it teaches viewers how to find the missing probability and estimate the likelihood of events happening by calculating the probability and multiplying it by the number of trials.

In the video, various examples are given to explain probability and relative frequency. The concept of probability is introduced through the idea of estimating the number of times an event will happen by performing an experiment multiple times.

This video is about systematic listing. It explains what systematic listing is and shows how to do it with different examples.