document.write( "Question 245802: An IRS auditor randomly selects 3 tax returns (without replacement) from 47 returns of which 5 contain errors. What is the probability that she selects none of those containing errors? \n" ); document.write( "
Algebra.Com's Answer #179489 by edjones(8007)\"\" \"About 
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nCr = n!/((n-r)!r!) Combinations of n things taken r at a time.
\n" ); document.write( "42C3/47C3
\n" ); document.write( "=11480/16215
\n" ); document.write( "=.708 probability she selects none.
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