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Statistics
Quick questions on Scatter graphs and correlation: lines of best fit and bivariate data - Edexcel GCSE Maths
2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
A scatter graph shows the age of a car against its value. What type of correlation would you expect, and what does it mean? [2 marks]
What is q2?Show answer
Why should you not use a line of best fit to predict a value far outside the plotted data? [1 mark]
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