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Posted on May 21, 2020

Novels have become somewhat famous for their high mis-print rate. If we expect 70 mis-printed copies per 400 books, and 40 people buy a book..

a) What is the probability of at least one copy of the 40 being mis-printed?

b) What is the probability of no more than 7 being wrong?

c) Is 8 a significantly high number of errors in 40 books? Why?

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