Also, get solved examples of calculating mean for grouped and ungrouped data using direct mean formula and assumed mean method. By Pragya Sagar Oct 11, 2023, 11:10 IST ...

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 ...