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Levels Tought:
University
| Teaching Since: | Apr 2017 |
| Last Sign in: | 438 Weeks Ago, 1 Day Ago |
| Questions Answered: | 9562 |
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bachelor in business administration
Polytechnic State University Sanluis
Jan-2006 - Nov-2010
CPA
Polytechnic State University
Jan-2012 - Nov-2016
Professor
Harvard Square Academy (HS2)
Mar-2012 - Present
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1.    Probability of Computer Failures A PC World survey of 4000 personal computer owners showed that 992 of them broke down during the first two years. (The comput- ers broke down, not the owners.) In choosing among several computer suppliers, a purchasing agent wants to know the probability of a personal computer breaking down during the first two years. Use the survey results to estimate that probability.
a.   If a personal computer is randomly selected, what is the probability that it will break down during the first two years?
b.   If two personal computers are randomly selected, what is the probability that they will both break down during the first two years?
c.    If three personal computers are randomly selected, what is the probability that at least one of them breaks down during the first two years?
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