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Statement of a problem № m846

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Samples of a Fast aluminum part are classified on the basis of surface finish (in micro inches) and edge finish. The results of 100 parts are summarized as follows: Edge finish Excellent Good Surface excellent 80 2 Finish good 10 8 Let A denote the event that a sample has excellent surface finish, and let B denote the event that a sample has excellent length. If a part 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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