(a)[1]
Plot these values on the scatter diagram.
(b)[1]
What kind of correlation does the scatter diagram display?
(c(i))[1]
On the scatter diagram, draw a line of best fit.
(c(ii))[1]
Use the line of best fit to estimate the number of litres sold.
Mathematics 0580 · IGCSE · Scatter diagrams
Scatter diagrams — practice question
The scatter diagram compares the price of petrol per litre with the number of litres sold at a petrol station over ten days. The vertical axis, Number of litres sold, runs from 0 to 500. The horizontal axis, Price per litre ($), spans 1.40 to 1.70.