Formula of Mean: Know to How to Calculate Median for Grouped, Ungrouped data along with solved examples, questions with solution.

Learn about and revise how to find the mean, median and mode averages from data with this BBC Bitesize GCSE Maths OCR study guide.

Calculating the mean and modal class for grouped data is very similar to finding the mean from an ungrouped frequency table, although you do not have all the information about the data within the ...