Question 447999
a cooler contains 10 sodas. 4 Colas, 5 orange, and 1 cherry. Two are selected at random without replacement. what is the probability that at least one can is cola?
<pre>
We get the probability of the complement event of getting two non-colas
and subtract from 1:

There are 6 non-colas.  So the probability of getting two non-colas is

{{{(6C2)/(10C2)}}}

Therefore the probability of getting at least one cola is

{{{1-(6C2)/(10C2)- 1-15/45=1-1/3=3/3-1/3=2/3}}}

Edwin</pre>