Paper 2 · Probability
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Lesson 8 of 9
Probability 8 – Bernoulli Trials
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- State the four conditions that make an experiment a Bernoulli trial
- Find P(R successes in n trials) with the formula (n R)·pᴿ·qⁿ⁻ᴿ
- Solve 'kth success on the nth trial' by fixing the last trial as a success (× p)
- Handle 'at least k' and 'at most k' with the complement rule or direct sums
Most recent exam questions
- 2025 P2 Q9(b)
- 2025 P2 Q9(c)(i) — deferred
- 2025 P2 Q9(c)(ii) — deferred
- 2024 P2 Q7(b)(i)
- 2024 P2 Q7(b)(ii)
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