Here is a list of numbers.
14 19 15 20 11 14 19
Find the range
Calculate the mean
Andrew says, "The median is the middle number, so the median is 20." Andrew is incorrect, explain why.
Practise Oxford AQA IGCSE Maths Averages with exam-style questions for Core and Extended tier. 12 questions, matched to the Oxford AQA IGCSE Maths (9260) specification and written in Paper 1 and Paper 2 (Core: 1C and 2C; Extension: 1E and 2E) 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.