Disks of polycarbonate plastic from a supplier are analyzed for scratch and shock resistance. The results from 100 disks are summarized as follows: Shock Resistance High Low Scratch High 70 9 Resistance Low 16 5 Let A denote the event that a disk has low scratch resistance, and let B denote the event that a disk has low shock resistance. Determine P(B) and P(A|B) a. 0.79, 0.8861 O b. NONE O. 0.14, 0.3571 O d.0.21, 0.2381

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