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  1. Task 1
  2.  
  3. The number of students who login to a randomly selected computer in a college computer lab
  4. follows a Poisson probability distribution with a mean of 19 students per day.
  5.  
  6. a. Using the Poisson probability distribution formula, determine the probability that exactly 12 stu-
  7. dents will login to a randomly selected computer at this lab on a given day.
  8.  
  9. b. Using the Poisson probability distribution table, determine the probability that the number of stu-
  10. dents who will login to a randomly selected computer at this lab on a given day is
  11. i. from 13 to 16
  12. ii. fewer than 8
  13.  
  14. Task 2
  15.  
  16. According to a Harris Interactive poll, 52% of American college graduates have Facebook accounts
  17. (http://www.harrisinteractive.com/harris_poll/pubs/Harris_Poll_2009_04_16.pdf). Suppose that this result is true for the current population of American college graduates.
  18.  
  19. a. Let x be a binomial random variable that denotes the number of American college graduates in
  20. a random sample of 15 who have Facebook accounts. What are the possible values that x can
  21. assume?
  22.  
  23. b. Find the probability that exactly 9 American college graduates in a sample of 15 have Face-
  24. book accounts.
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