OCR S2 2007 June — Question 2

Exam BoardOCR
ModuleS2 (Statistics 2)
Year2007
SessionJune
TopicApproximating the Binomial to the Poisson distribution
TypeCalculate single probability using Poisson approximation
2 It is given that on average one car in forty is yellow. Using a suitable approximation, find the probability that, in a random sample of 130 cars, exactly 4 are yellow.
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