Edexcel S2 2003 June — Question 1

Exam BoardEdexcel
ModuleS2 (Statistics 2)
Year2003
SessionJune
TopicApproximating the Poisson to the Normal distribution
TypeState condition for normal approximation
  1. Explain briefly what you understand by
    1. a statistic,
    2. a sampling distribution.
    3. (a) Write down the condition needed to approximate a Poisson distribution by a Normal distribution.
    The random variable \(Y \sim \operatorname { Po } ( 30 )\).
  2. Estimate \(\mathrm { P } ( Y > 28 )\).
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