document.write( "Question 470928: there are 20 computers and 3 are defective. Three are removed and tested. What is the probability that none are defective if 2 are not replaced after being tested? \n" ); document.write( "
Algebra.Com's Answer #323003 by chips(2)\"\" \"About 
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1/20 \n" ); document.write( "
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