document.write( "Question 1060894: An IRS auditor randomly selects 3 tax returns from 57 returns of which 8 contain errors. What is the probability that she selects none of those containing errors? \n" ); document.write( "

Algebra.Com's Answer #675853 by KMST(5328) $\"\"$ $\"About$

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There are $\"57-8=49\"$ returns with no errors.
\n" ); document.write( "There are $\"57%2A56%2A55%2F%281%2A2%2A3%29\"$ possible sets of 3 returns that the auditor could pick.
\n" ); document.write( "Of those $\"49%2A48%2A47%2F%281%2A2%2A3%29\"$ are sets of 3 returns with no errors.
\n" ); document.write( "The number of possible sets of 3 returns with no errors,
\n" ); document.write( "as a fraction of the number of possible sets of 3 returns available for auditing is
\n" ); document.write( " $\"49%2A48%2A47%2F%2857%2A56%2A55%29=about+0.630\"$ ,
\n" ); document.write( "so the probability that the auditor selects none of the return containing errors is about $\"highlight%280.630=%2263.0%22%2F100=%2263.0%25%22%29\"$ . \n" ); document.write( "

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