A grouped frequency table is a way of presenting data in groups called classes close class A group created to contain a set of data. For example, the class 10 < 𝒙 < 20 contains values of 𝒙 ...

Inequalities are often used in grouped tables. For example, the category \(0 \textless m \leq 4\) means that \(m\) is larger than 0 but less than or equal to 4. If data is organised into groups ...