Remarkable / Worksheets / Grade 7 Maths / Data handling: mean, median, mode and range
A one-page CAPS Grade 7 Maths poster on data handling: mean, median, mode and range (Data), with the key ideas, key words and a tip to remember.
Add all the values. Then divide by the number of values.
Data: 7, 3, 10, 4, 6
7 + 3 + 10 + 4 + 6 = 30
30 ÷ 5 = 6, so the mean is 6
Put the data in order from smallest to biggest. The median is the middle value. With two middle values, find the number halfway between them.
3, 9, 5, 7, 11 in order: 3, 5, 7, 9, 11
The median is 7.
3, 7, 13, 9 in order: 3, 7, 9, 13
(7 + 9) ÷ 2 = 8, so the median is 8
31, 18, 25, 40, 22, 25
Mode: 25
Range: 40 − 18 = 22
The height of each bar shows how many. The tallest bar is the mode.
Total: 6 + 10 + 8 + 4 = 28 learners
Mode: banana
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