The main averages, which can also be referred to as measures of central tendency, are the mean, mode and median. Robert is preparing for his Mathematics GCSE exams. Each paper is marked out of 100.

As the results are in a table, they are already ordered for us. In this case, as there are \(12\) results, the median is between the \(6th\) and \(7th\) result. We look at the frequency column and ...