Mathematics, 10.09.2019 19:30 bellagracebulle8018
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
scratch resistance high low
high 70 9
low 16 5
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. input your answers in the fractional form (do not simplify).
p(a)=86/100
p(b)=79/100
p(a')=7/50
p(a u b)=95/100
p(a' u b)=
Answers: 1
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