Let A denote the event that a sample has excellent surface finish, and let B denote the event that a sample has excellent edge finish. Determine the number of samples in each of the following events. (a) A' n B = i (b) B' = i (c) AUB= i

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Samples of a cast aluminum part are classified on the basis of surface finish (in microinches) and edge finish. The results of 100 parts
are summarized as follows:
Surface Finish
Excellent
i
Good
Edge Finish
Excellent Good
65
5
10
20
Let A denote the event that a sample has excellent surface finish, and let B denote the event that a sample has excellent edge finish.
Determine the number of samples in each of the following events.
(a) A' n B = i
(b) B' = i
(c) AUB=
Transcribed Image Text:Samples of a cast aluminum part are classified on the basis of surface finish (in microinches) and edge finish. The results of 100 parts are summarized as follows: Surface Finish Excellent i Good Edge Finish Excellent Good 65 5 10 20 Let A denote the event that a sample has excellent surface finish, and let B denote the event that a sample has excellent edge finish. Determine the number of samples in each of the following events. (a) A' n B = i (b) B' = i (c) AUB=
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