Assume that the requirements for the Poisson probability distribution are met for Exercises 23–31. Also, when asked to approximate a probability, use the Poisson approximation for the binomial distribution.

Question 6.206

24. Clickstream Analysis. “Clickstream analysis” refers to the analysis of the sequence of Web page clicks by users of a particular Web site. The mean number of page hits on the Web site of the Environmental Protection Agency (EPA) was page hits per visitor.7 Let refer to the number of page hits on the EPA Web site. Find the following probabilities:

  1. Probability that
  4. Probability that is less than 2
  5. Probability that is greater than 2. (Hint: Use the answers to (c) and (d).)