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Disks of polycarbonate plastic from a supplier are analyzed for scratch and shock resistance. The results from 121 disks are summarized as follows: Shock Resistance High Low Scratch High 78 12 Resistance Low 11 20 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 s selected at random, determine the following probabilities. Round your answers to two decimal places (e.g. 98.76). Ca) P(A) = i b) P(B) = i c) P(A') = i

Disks of polycarbonate plastic from a supplier are analyzed for scratch and shock resistance. The results from 121 disks are summarized as follows: Shock Resistance High Low Scratch High 78 12 Resistance Low 11 20 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 s selected at random, determine the following probabilities. Round your answers to two decimal places (e.g. 98.76). Ca) P(A) = i b) P(B) = i c) P(A') = i

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.8: Probabilities Of Disjoint And Overlapping Events
Problem 2C
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Disks of polycarbonate plastic from a supplier are analyzed for scratch and shock resistance. The results from 121 disks are summarized as follows: Shock Resistance High Low Scratch High 78 12 Resistance Low 11 20 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) = i (b) P(B) = (c) P(A') = i (d) P(AN B) = i (e) P(A U B) =i (f) P(A' U B) = i
Transcribed Image Text:Disks of polycarbonate plastic from a supplier are analyzed for scratch and shock resistance. The results from 121 disks are summarized as follows: Shock Resistance High Low Scratch High 78 12 Resistance Low 11 20 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) = i (b) P(B) = (c) P(A') = i (d) P(AN B) = i (e) P(A U B) =i (f) P(A' U B) = i
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