O-LevelMathematicsProbability4024/22 · May/June 2024 · Q27 Marks
The diagram shows a fair spinner numbered from 1 to 5. The score is the number the spinner lands on. [Figure 2.1]
- (a)(i)The spinner is spun once. Find the probability that the score is 3[1]
- (a)(ii)even.[1]
- (b)(i)The spinner is spun twice. The two scores are added together. Complete the possibility diagram to show all the outcomes.[2]
- (b)(ii)Find the probability that the outcome is 4.[1]
- (b)(iii)Find the probability that the outcome is greater than 6.[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 (May/June 2024). The mark or mark type is shown in brackets.
- [1] 1/5 oe
- [1] 2/5 oe
- [2] ....7 8 / 5 6 7 8 9 / 6 7 8 9 10
- B1 for at least 7 values correct
- [1] 3/25 oe
- [2] 10/25 oe
- FT their complete possibility diagram
- B1FT for answer their10/k where k is 35 or 36
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