Question 574472
A carton of 24 eggs contains one that is spoiled. In how many ways can people chose 3 of these eggs and gets one that is spoiled? 
<pre>

P(getting the spoiled one and two unspoiled one) = 

1 - P(getting 3 good eggs) =

1 - ((23 good eggs choose 3)/(24 eggs choose 3)) =

1 - {{{((23C3)/(24C3))}}} =

1 - .875 = .125

Edwin</pre>