SOLUTION: 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?

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?
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
There are returns with no errors.
There are possible sets of 3 returns that the auditor could pick.
Of those are sets of 3 returns with no errors.
The number of possible sets of 3 returns with no errors,
as a fraction of the number of possible sets of 3 returns available for auditing is
,
so the probability that the auditor selects none of the return containing errors is about .
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