JEFF: Let’s start with the ‘mean’ score. JANINE: No need to get nasty, Jeff. JEFF: No no, the ‘mean’ is the average ... range. JANINE: Oh, looks like Putter's time is up. To find the ...

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.