12. Of the bolts manufactured for a certain application, 85% meet the length specification and can be use immediately, 10% are too long and can be used after being cut, and 5% are too short and must be scrappe Eight bolts are selected at random. a What is the probability that one or more is too short? b What is the probability that seven or more are not too short? c What is the probability that more than three are either too long or too short? d What is the probability that exactly six are either too long or too short?

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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12. Of the bolts manufactured for a certain application, 85% meet the length specification and can be used
immediately, 10% are too long and can be used after being cut, and 5% are too short and must be scrapped.
Eight bolts are selected at random.
a What is the probability that one or more is too short?
b What is the probability that seven or more are not too short?
c What is the probability that more than three are either too long or too short?
d What is the probability that exactly six are either too long or too short?
Transcribed Image Text:12. Of the bolts manufactured for a certain application, 85% meet the length specification and can be used immediately, 10% are too long and can be used after being cut, and 5% are too short and must be scrapped. Eight bolts are selected at random. a What is the probability that one or more is too short? b What is the probability that seven or more are not too short? c What is the probability that more than three are either too long or too short? d What is the probability that exactly six are either too long or too short?
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