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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
7.55 Thirty percent of all automobiles undergoing an emissions inspection at a certain inspection station fail the inspection.
a.   Among 15 randomly selected cars, what is the proba- bility that at most 5 fail the inspection?
b.   Among 15 randomly selected cars, what is the probabil- ity that between 5 and 10 (inclusive) fail to pass inspection?
c.   Among 25 randomly selected cars, what is the mean value of the number that pass inspection, and what is the standard deviation of the number that pass inspection?
d.   What is the probability that among 25 randomly se- lected cars, the number that pass is within 1 standard devi- ation of the mean value?
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