What is prior probability and what is posterior probability

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1. What is a prior probability? What is a posterior probability?

2. Explain the purpose behind using Bayes' theorem.

METHODS AND APPLICATIONS
3. Suppose that A1, A2, and B are events where A1 and A2 are mutually exclusive and

P(A1) = .8 P(B I A1) = .1

P(A2) = .2 P(B I A2) = .3

Use this information to find P(A1 I B) and P(A2 I B).

Reference no: EM13911913

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