--DEFINITION--

A two-way table is a visual tool used to organize data about two categorical variables. It's called "two-way" because it shows how two different categories interact with each other. It's incredibly useful for calculating probabilities because it gives a clear picture of the relationships between the variables.

双向表是一种用于组织两个分类变量数据的可视化工具。它之所以被称为"双向"，是因为它展示了两种不同类别之间如何相互关联。这种表格在计算概率时极其有用，因为它能清晰呈现变量之间的关系。

"Let's make a whole class table based on the two variables: Gender & Whether or not you like math!"

"Now, copy the table below into your books, then use the results we gathered above to complete it."