Statement of a problem № m845


Samples of emissions from three suppliers are classified for conformance to air-quality specifications. The results from 100 samples are summarized as follows: Conforms Yes No 1 22 8 Supplier 2 25 5 3 30 10 Let A denote the event that a sample is from supplier 1, and let B denote the event that a sample conforms to specifications. If a sample is selected at random, determine the following probabilities: (a) P (A) (b) P (A) (c) P (A`) (d) P (A ∩ B) (e) (A U B) (f) (A` U B)

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