Calculating Mean of Group Data using Step Deviation Method

The video tutorial explains how to calculate the mean of grouped data using the step deviation method. It begins with an introduction to grouped data and central tendency, followed by a problem statement involving the mean age of a community. The tutorial then outlines the preparation steps, including finding mid-values and class size. The step deviation method is detailed, showing how to calculate deviations and their products with frequencies. Finally, the mean is calculated using a specific formula, and the steps are summarized.

What new insight or understanding did you gain from this video?