Kavin has 8 pairs of shoes; each pair is a different color. If Kavin randomly selects 2 shoes without replacement from the 16 shoes, what is the probability that she will select 2 shoes of the same color?
Choices:
A) 2/5
B) 1/5
C) 1/19
D) 1/15
E) 1/21
Can be tackled in this way as well: Probability of selecting any 1 out of 16 shoes = 16/16= 
<gadget id="calculator">16/16</gadget>
<output>1</output>
1   Probability of selecting the next shoe (out of 15 available) having the same color= 1/15 (as after selecting the 1st one, there is only 1 another shoe left with the same color).   Thus the total probability = 1*1/15=1/15.   1/15 is the correct answer.
<result>D</result>
Kavin has 8 pairs of shoes; each pair is a different color. If Kavin randomly selects 2 shoes without replacement from the 16 shoes, what is the probability that she will select 2 shoes of the same color?