Question 514385
If the odds against Ealgenton winning the election are 2 to 7, then what is the probability the eagleton will win the election?

<pre>
These are all equivalent:

odds against = f:s, odds in favor = s:f,  probability = {{{s/(s+f)}}} 

Substituting f=2, and s=7 

odds against = 2:7, odds in favor = 7:2, probability = {{{7/(7+2)}}} = {{{7/9}}}

Edwin</pre>