Describing correlation

Sample Describing correlation questions

A few of the 40 questions, from easier to harder. Choose your exam board and tier to practise them, with every answer marked.

1. Question 11 markGrade 3-4
   A scatter graph is drawn showing a car's age against its value. As a car's age increases, the points on the scatter graph show a clear downward trend. Describe the type of correlation shown.

What are the common mistakes in Describing correlation?

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.

• States the correlation as positive when it is negative, or vice versa

  Confused the direction of the trend

• Misjudges the strength of a correlation from a scatter graph

  Misjudged the strength of the correlation, calling a tightly clustered trend weak

• Describes a weak correlation as if there were no correlation at all

  Described a weak but genuine correlation as 'no correlation' because the points are loosely scattered, instead of recognising the overall trend

Quick answers about Describing correlation

How many Describing correlation practice questions are there?

There are 40 self-marking GCSE Maths questions on Describing correlation, written for AQA, Pearson, OCR across Foundation and Higher tier. Each one is marked instantly and has a full worked solution.

Do I need an account to practise Describing correlation?

No. You can start practising Describing correlation straight away without an account. A free account keeps your results across sessions, so you can see your progress on this topic over time.