Question 1200667
4. a box has 6 blue socks and 4 white socks. find the number of ways two socks
   can be drawn from the box where:  

a. there are no restrictions
<pre>  
10 socks choose 2 = 10C2 = C(10,2) = {{{(matrix(2,1,10,2))}}} = {{{(10*9)/(2*1)}}} = 45</pre> ways.

b. they are different colors c. there are the same color<pre>
Choose the blue sock 6 ways. For each of the ways we choose a blue sock, there
are 4 ways to choose a white sock.  That's 6 times 4 or 24 ways.

Edwin</pre>