Question 1151955
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Probability compares "good" outcomes to all possible outcomes.
P(audit) = 1.9% = .019 = 19/1000 means 19 out of every 1000 taxpayers will be audited.<br>
So of every 1000 taxpayers, 19 will be audited and 981 will not.<br>
Odds IN FAVOR OF compares good outcomes to bad outcomes; odds AGAINST compares bad outcomes to good outcomes.  So<br>
The odds in favor of getting audited are 19:981; the odds against getting audited are 981:19.<br>
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If the answers are given in the form 1:x or x:1, then simply divide both numbers in the odds I showed by 19:<br>
odds in favor = 19:981 = 1:981/19 or 1:51.63 (approximately) or, to the nearest whole number, 1:52
odds against = 981:19 = 51.63:1 (approximately), or 52:1<br>