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Back to 3.2 Problems on Conditional Probability

3.2 Exercise 7

Avg difficulty 2.5

Twenty percent of the paintings in a gallery are not originals. A collector buys a painting. He has probability 0.10 of buying a fake for an original but never rejects an original as a fake, What is the (conditional) probability the painting he purchases is an original?

Pfeiffer, Applied Probability, 3.2 Problems on Conditional Probability, exercise 7

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Adapted from Applied Probability © 2009 Paul E. Pfeiffer. Licensed under CC BY 3.0. Source: Applied Probability. Imported at revision d7a0420.