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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
Customers depart from a bookstore according to a Poisson process with rate λ per hour. Each customer buys a book with probability p, independent of everything else.
(a) Find the distribution of the time until the first sale of a book.
(b) Find the probability that no books are sold during a particular hour.
(c) Find the expected number of customers who buy a book during a particular hour.Â
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