9/30/2009

• Chapter 4
  • Justification for Poisson Approximation
  • Poisson R.V.
  • Hypergeometric Distributions
  • A company receives a shipment of 20 items.  Because inspection of each individual item is expensive, it has a policy of checking a random sample of 6 items from such a shipment and accepting delivery if no more than one selected item is defective.  What is the probability that a shipment with 5 defectives will be accepted?
    
  • Approximating Hypergeometric Probabilities with the Binomial Distribution
  • Suppose that 10,000 individuals (4,500 women and 5,500 men) attend a sporting event.  Five ticket stubs are drawn at random, without relacement, to receive prizes.  Find the exact probability that three men and two women receive the prizes.  Use the binomial distribution to approximate the probability of interest and compare your answers.
  • Group Exercises