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pointi Disks of polycarbonate plastic from a supplier are analyzed for scratch and shock resistance. The results from 100 disks are summanzed as follows. Shock Resistance High Low High 70 Shock Resistance LOW 16 Let A dangle the event that a disk has bigh shock resistance, and let B denole the event that a dink has high scratch resistance. If a sample is selected at randort. determine the following probabilities (6) PCA) (b) P(B) (0) P(A]B) (d) P(BIA)