O-LevelMathematicsStatistics4024/22 · Oct/Nov 2023 · Q39 Marks
(a) Laila asks a group of people what type of exercise they prefer. The results are shown in the pie chart. [Figure Pie Chart]
- (a)(i)90 people prefer running. Calculate the total number of people Laila asks.[2]
- (a)(ii)Work out the fraction of the group who prefer yoga. Write your answer in its simplest form.[2]
- (b)(i)Laila records the number of steps she walks each day for 60 days. The table shows the results. Number of steps (n thousand) 5 < n ≤ 8 8 < n ≤ 10 10 < n ≤ 12 12 < n ≤ 15 15 < n ≤ 20 Frequency 9 16 14 15 6 Complete the histogram to represent the data.[3]
- (b)(ii)Laila has a target of 11000 steps every day. Find an estimate for the percentage of these 60 days that Laila met her target.[2]
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.
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2023). The mark or mark type is shown in brackets.
- [2] M1 for 90/135 [x360] oe or 360/135 [x90] oe
- [2] M1 for (360 - 60 - 135 - 90) / 360 oe
- [3] B2 for 3 correct bars or B1 for 2 correct bars or 3 or more correct frequency densities soi
- [2] B1 for 28 seen
- or M1 for (6+15+7)/60 [x100] oe
- If 0 scored, SC1 for 53.3[3...] oe
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