In this clip. it shows what charlie studies falls into the area of probability and statistics involving what are called "random matrices." While the first activity has no prerequisites, the latter activities all assume some basic knowledge of linear algebra, matrices, and determinants.

Square One TV illustrates the concept of averages and how to find them. The three characters must find the average number of books they should be carrying.

Two men flip a coin for a candy bar.

Fred concocts a glue only to find out that it's similar to a glue that has been on the market for 20 years.

A young boy points out that a game at a town fair might be rigged.