4MA1/1H Jun 2025, Question 19: Probability without replacement
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1H (Higher) · Calculator · 2 marks
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The question, in short
A bag has 9 counters: 1, 1, 2, 3, 3, 3, 5, 6, 6. Two are taken without replacement. Find the probability their sum is less than 5.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Part (i) · 1 mark
- 1f(x) + 3 moves the curve up 3
- 2(8, −12 + 3) = (8, −9)
Answer(8, −9)
Part (ii) · 1 mark
- 1f(2x) is a stretch in the x-direction, scale factor 1/2
- 2(8 ÷ 2, −12) = (4, −12)
Answer(4, −12)
Stuck on a step? Read the free lesson: Transformations of Graphs
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