You randomly choose a sock from a drawer of 8 black socks, 10 white socks, 12 blue socks, and 6 green socks. Then, without replacing the sock, you randomly choose a second sock. Find the probability that you choose 2 blue socks?

1 Answer
bdog · Stefan V.
May 17, 2018

#0.105#

Explanation:

  1. Add all the socks in the drawer to get a denominator
  2. #12# blue socks can be picked out of the #36# total socks, so #12/36#
  3. Then you take away one sock from the top and bottom, so you now have #11/35#
  4. Multiply the two numerators (#12# and #11#), then multiply the denominators (#36# and #35#), then divide the numerator by the denominator, #132/1260#, to get your answer.
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