2-45. Disks of polycarbonate plastic from a supplier are analyzed for scratch and shock
Chapter 2, Problem 2-45(choose chapter or problem)
2-45. Disks of polycarbonate plastic from a supplier are analyzed for scratch and shock resistance. The results from 100 disks are summarized as follows:shock resistancehigh lowscratch high 70 9resistance low 16 5Let A denote the event that a disk has high shock resistance,and let B denote the event that a disk has high scratch resistance.If a disk is selected at random, determine the followingprobabilities:
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