document.write( "Question 1136995: A factory has seven machines- four of model A and three of model B. At any given moment, there is an 80% chance that a model A machine will be in use. Similarly, model B is used 60 % of the time. If the supervisor walks into the factory at a randomly selected time, what is the probability that two machines of model A and one of model B will be in use? \n" ); document.write( "
Algebra.Com's Answer #754858 by ikleyn(52814)\"\" \"About 
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\n" ); document.write( "A factory has seven machines- four of model A and three of model B. At any given moment, there is an 80% chance that a model A machine
\n" ); document.write( "will be in use. Similarly, model B is used 60 % of the time. If the supervisor walks into the factory at a randomly selected time,
\n" ); document.write( "what is the probability that \"highlight%28exactly%29\" two machines of model A and \"highlight%28exactly%29\" one of model B will be in use?
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document.write( "P = \"C%5B4%5D%5E2%2A0.8%5E2%2A%281-0.8%29%5E2\" + \"C%5B3%5D%5E2%2A0.6%2A%281-0.6%29%5E2\" = \"6%2A0.8%5E2%2A0.2%5E2+%2B+3%2A0.6%2A0.4%5E2\" = 0.4416 = 44.16%.\r\n" );
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