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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | Jul 2017 |
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| Questions Answered: | 5502 |
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MBA.Graduate Psychology,PHD in HRM
Strayer,Phoniex,
Feb-1999 - Mar-2006
MBA.Graduate Psychology,PHD in HRM
Strayer,Phoniex,University of California
Feb-1999 - Mar-2006
PR Manager
LSGH LLC
Apr-2003 - Apr-2007
Use for questions 1, 2 and 3.
An automobile manufacturer obtains the microprocessors used to regulate fuel consumption in its automobiles from three microelectronic firms: A, B, and C. The quality-control department of the company has determined that 1% of the microprocessors produced by firm A are defective, 2% of those produced by firm B are defective, and 1.5% of those produced by firm C are defective. Firms A, B, and C supply 45%, 25%, and 30%, respectively, of those microprocessors used by the company. An automobile is selected at random. Draw a tree diagram.
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1. What is the probability it was manufactured at firm B and it was found to be defective?
A. .0050 B. .0150 C. .0140 D. .0200
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2.What is the probability it is defective?
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A.    .0038 B. .0150 C. .0140 D. .0200
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3. What is the probability it was defective given it was manufactured at firm C?
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A.    .0038 B. .0150 C. .0140 D. .0200
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Use for questions 4 and 5.
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An urn contains 10 red and 13 blue marbles. Two marbles are chosen at random, in succession and without replacement. Draw tree diagram.
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4. What is the probability a marble is blue?
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A.    .4348 B. .5652 C. .5504 D. .5455
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5. What is the probability that the first marble was red, given that the second one was blue?
A. .4545 B. .5652 C. .5504 D. .5455
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