Average and Range from a list

Sample Average and Range from a list questions

A few of the 49 questions, from easier to harder. Choose your exam board and tier to practise them, with every answer marked.

1. Question 14 marksGrade 3-4
   In a chemistry exam, the scores of a group of students, out of 100, were:

   3

   9

   22

   1

   17

   4

   (a) Work out the range. (b) Work out the mean.
   Show the worked solution

   (a) Range: 22 − 1 = 21 M1 A1

   (b) Mean: (3 + 9 + 22 + 1 + 17 + 4) ÷ 6 = 56 ÷ 6 = 9.33 M2 A2
2. Question 26 marksGrade 3-4

What are the common mistakes in Average and Range from a list?

When a pupil makes one of these on Revision Workshop, the marking engine names the mistake and explains it, instead of just marking the answer wrong.

• Mean given as sum not divided

  For part (c), added the values but forgot to divide by how many there are, giving the total instead of the mean.

• Gives the maximum value alone instead of the difference between maximum and minimum as the range

  For part (a), reported the maximum value as the range, forgetting to subtract the minimum.

• Median picked one middle value not averaged

  For part (b), with an even number of values, picked one of the two middle values instead of finding their mean.

Quick answers about Average and Range from a list

How many Average and Range from a list practice questions are there?

There are 49 self-marking GCSE and IGCSE Maths questions on Average and Range from a list, written for AQA, Pearson, OCR, Pearson International GCSE Maths A (4MA1), Cambridge IGCSE Mathematics (0580), Cambridge IGCSE (9-1) Mathematics (0980) across Foundation and Higher and Core and Extended tier. Each one is marked instantly and has a full worked solution.

Do I need an account to practise Average and Range from a list?

No. You can start practising Average and Range from a list straight away without an account. A free account keeps your results across sessions, so you can see your progress on this topic over time.