OCR S2 2012 January — Question 2

Exam BoardOCR
ModuleS2 (Statistics 2)
Year2012
SessionJanuary
TopicApproximating the Binomial to the Poisson distribution
TypeState Poisson approximation with justification
2 The random variable \(Y\) has the distribution \(\mathrm { B } ( 140,0.03 )\). Use a suitable approximation to find \(\mathrm { P } ( Y = 5 )\). Justify your approximation.
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