The table shows the time spent on a homework task and the number of errors made for some students in a class. Time (minutes) 79 92 91 85 82 95 60 65 63 70 Number of errors 5 1 3 3 5 0 9 7 8 7 [Figure for 6 shows a scatter diagram with the first 6 points plotted]

1. (a)Complete the scatter diagram. The first 6 points have been plotted for you.[2]
2. (b)On the scatter diagram, draw a line of best fit.[1]
3. (c)Another of the students in the class made 6 errors. Use your line of best fit to estimate the time this student spent on the homework task.[1]

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.