A café owner records the number of hours of sunshine and the number of ice-creams sold for 10 days. The results are shown in the table. Day 1 2 Hours of 12 0 sunshine Number of 150 5 ice-creams sold 160- 140- 3 3 35 35 120 100- Number of ice-creams 80- sold 60- 40- 201 0 4 5 6 7 8 9 10 6.5 6 4.5 4 8 10 5 86 +2 72 X ☑ * 56 56 38 38 * 120 127 74 4 6 8 10 12 14 16 Hours of sunshine (a) Complete the scatter diagram. The first 8 points have been plotted for you. (b) What type of correlation is shown on the scatter diagram? (c) On the scatter diagram, draw a line of best fit. (d) The weather forecast predicts 7 hours of sunshine for tomorrow. Use your line of best fit to estimate the number of ice-creams that will be sold tomorrow.