Paper 2 · Probability
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Lesson 11 of 11
LCOL Probability 11: Bernoulli Trials
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- Find the probability of r successes in n trials
- Handle ‘known order’, ‘at most’ and ‘first time on day k’ cases
Formula used
Bernoulli trials
P(r) = nCr pʳ (1-p)ⁿ⁻ʳ
On page 20 of the log tables — read it off, don’t memorise.Most recent exam questions
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