Maths
Number Sense - Sometimes, Always, Never
Finding the mean
To find the mean (average) of a set of data
Watch the White Rose and BBC Bitesize videos below to remind yourself about how to find the mean.
e.g. 150 x 5 = 750 - all of the heights must total 750.
150 + 170 + 140 + 155 = 615
750 - 615 = ?