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In a certain manufacturing company, a safety engineer has conducted an observation for a period of one month. The results presented show that only 10% of the machinists wear clear goggles and 90% wear cotton gloves when grinding a piece of metal during a regular day. Assuming that this claim is right and that the workers still do not know that they are being observed, what is the chance that no more than 3 out of 7 workers will be wearing their clear goggles while grinding during a random check?

In a certain manufacturing company, a safety engineer has conducted an observation for a period of one month. The results presented show that only 10% of the machinists wear clear goggles and 90% wear cotton gloves when grinding a piece of metal during a regular day. Assuming that this claim is right and that the workers still do not know that they are being observed, what is the chance that no more than 3 out of 7 workers will be wearing their clear goggles while grinding during a random check?

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
Section: Chapter Questions
Problem 8CR
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In a certain manufacturing company, a safety engineer has conducted an observation for a period of one month. The results presented show that only 10% of the machinists wear clear goggles and 90% wear cotton gloves when grinding a piece of metal during a regular day. Assuming that this claim is right and that the workers still do not know that they are being observed, what is the chance that no more than 3 out of 7 workers will be wearing their clear goggles while grinding during a random check? 0.997 0.957 0.571
Transcribed Image Text:In a certain manufacturing company, a safety engineer has conducted an observation for a period of one month. The results presented show that only 10% of the machinists wear clear goggles and 90% wear cotton gloves when grinding a piece of metal during a regular day. Assuming that this claim is right and that the workers still do not know that they are being observed, what is the chance that no more than 3 out of 7 workers will be wearing their clear goggles while grinding during a random check? 0.997 0.957 0.571
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