i) Find the probability of winning a prize at most two times. ii) How many tickets he has to purchase so that his probability of winning  at least   once is at least 75%

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section: Chapter Questions
Problem 14T: An unbalanced coin is weighted so that the probability of heads is 0.55. The coin is tossed ten...
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From 60 lottery tickets a person  selects  12  tickets .In each of these tickets chosen his

  chance  of  not winning a prize is 92%

  1. i) Find the probability of winning a prize at most two times.
  2. ii) How many tickets he has to purchase so that his probability of winning  at least   once is at least 75%
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