SOLUTION: A drawer contains a mixture of 12 black socks, 8 white socks, and 4 red socks. You randomly select 2 socks to wear. Determine the probability that both are black. (Give your

Algebra ->  Probability-and-statistics -> SOLUTION: A drawer contains a mixture of 12 black socks, 8 white socks, and 4 red socks. You randomly select 2 socks to wear. Determine the probability that both are black. (Give your       Log On


   



Question 1042727: A drawer contains a mixture of 12 black socks,
8 white socks, and 4 red socks. You randomly
select 2 socks to wear. Determine the
probability that both are black. (Give your
answer as a fraction.)

Answer by Edwin McCravy(20064) About Me  (Show Source):
You can put this solution on YOUR website!
A drawer contains a mixture of 12 black socks,
8 white socks, and 4 red socks. You randomly
select 2 socks to wear. Determine the
probability that both are black. (Give your
answer as a fraction.)

That's 

"12 black socks Choose 2", or 12C2 ways 

out of 

"24 possible socks Choose 2", or 24C2 ways.

So we have:

%2812C2%29%2F%2824C2%29%22%22=%22%2266%2F276%22%22=%22%2211%2F46

Edwin