document.write( "Question 906395: if a box contains 12 transistors, 3 of which are defective. If 3 are selected at random what is the probability that all are defective
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Algebra.Com's Answer #549788 by stanbon(75887)\"\" \"About 
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if a box contains 12 transistors, 3 of which are defective. If 3 are selected at random what is the probability that all are defective
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\n" ); document.write( "# of ways to select 3 defective:: 3C3 = 1
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\n" ); document.write( "# of random sets of 3:: 12C3 = (12*11*10)/(1*2*3) = 220
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\n" ); document.write( "P(3 defective) = 1/220
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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