DISCUSSION FILE # 22 One of our airplanes just crashed and the NTSB claims that it was due to a failure of a bolt that holds the wing on. We buy those bolts from 4 different manufacturers. Historical percentages of bolts purchased, along with their respective average failure rates are listed below. What's the probability that the defective bolt will eventually be traced to Company "C"? ● Company A provides 45% and their average failure rate is 0.1%

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.2: Introduction To Probability
Problem 52E
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DISCUSSION FILE # 22
One of our airplanes just crashed and the NTSB claims that it was due to a failure of a bolt
that holds the wing on. We buy those bolts from 4 different manufacturers. Historical
percentages of bolts purchased, along with their respective average failure rates are listed
below. What's the probability that the defective bolt will eventually be traced to Company
"C"?
●
●
●
about 25%
O about 5%
Company A provides 45% and their average failure rate is 0.1%
Company B provides 25% and their average failure rate is 0.2%
Company C provides 15% and their average failure rate is 0.3%
Company D provides 15% and their average failure rate is 0.25%
about 18%
O about 33%
O about 28%
Transcribed Image Text:DISCUSSION FILE # 22 One of our airplanes just crashed and the NTSB claims that it was due to a failure of a bolt that holds the wing on. We buy those bolts from 4 different manufacturers. Historical percentages of bolts purchased, along with their respective average failure rates are listed below. What's the probability that the defective bolt will eventually be traced to Company "C"? ● ● ● about 25% O about 5% Company A provides 45% and their average failure rate is 0.1% Company B provides 25% and their average failure rate is 0.2% Company C provides 15% and their average failure rate is 0.3% Company D provides 15% and their average failure rate is 0.25% about 18% O about 33% O about 28%
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