Solving problem N3848 Bayesian probability theory

Solving problem N3848 Bayesian probability theory

3848. 70% of the parts entering the assembly are made by an automatic machine giving 2% of scrap, and the remaining parts by an automatic machine giving 5% of scrap. Randomly taken detail was defective. What is the probability that it is made the first machine?

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Detailed solution. Decorated in Microsoft Word 2003 (Quest decided to use the formula editor)

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