The cumulative frequency graph provides details about the scores of 40 students in a mathematics challenge.

Find the median score.
Find the interquartile range.
Practise Edexcel GCSE Maths Cumulative Frequency with exam-style questions for Foundation and Higher tier. 24 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 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.