document.write( "Question 1051689: A study of college students shows that 8 out of 12 students prefer a pc computer system while 4 prefer a mac. Randomly select two students with no replacement between selections.
\n" ); document.write( "a Draw a tree diagram and place probabilities on each branch...I have done this part..\r
\n" ); document.write( "\n" ); document.write( "b What is the probability that both would prefer a Mac
\n" ); document.write( "c What is the probability that at least one would prefer a Mac
\n" ); document.write( "d What is the probability that one would prefer a Mac and one a PC
\n" ); document.write( "e What is the probability that one would prefer a Mac after one who prefers a PC
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Algebra.Com's Answer #667138 by stanbon(75887)\"\" \"About 
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A study of college students shows that 8 out of 12 students prefer a pc computer system while 4 prefer a mac.
\n" ); document.write( "P(prefer pc) = 8/12 = 2/3
\n" ); document.write( "P(prefer MAC) = 1/3
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\n" ); document.write( "Randomly select two students with no replacement between selections.
\n" ); document.write( "a Draw a tree diagram and place probabilities on each branch...I have done this part..
\n" ); document.write( "b What is the probability that both would prefer a Mac:: (1/3)^2 = 1/9
\n" ); document.write( "c What is the probability that at least one would prefer a Mac:: 1-(2/3)^2
\n" ); document.write( "= 1 - (4/9) = 5/9
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\n" ); document.write( "d What is the probability that one would prefer a Mac and one a PC
\n" ); document.write( ":: (1/3)(2/3) = 2/9
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\n" ); document.write( "e What is the probability that one would prefer a Mac after one who prefers a PC\r
\n" ); document.write( "\n" ); document.write( "P(Mac | PC) = P(Mac) = 1/3
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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