Disks of polycarbonate plastic from a supplier are analyzed for scratch and shock resistance. The results from 151 disks are summarized as follows: Shock Resistance High Low Scratch High 77 12 Resistance Low 13 49 Let 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 following probabilities. Round your answers to two decimal places (e.g. 98.76). (a) P(A) = (b) P(B) = (c) P(A′) = (d) P(A ∩ B) = (e) P(A U B) = (f) P(A′ U B) = please explain me easy way

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