Here is a list of the heights, in cm, of 10 sunflower plants.
10 12 15 15 17 20 20 20 22 28
Work out the range.
Find the mode.
Practise WJEC GCSE Maths Averages with exam-style questions for Foundation and Higher tier. 48 questions, matched to the WJEC GCSE Maths (3320QD) specification and written in Unit 1, Unit 2 and Unit 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.