SOLUTION: What is the probability (to the nearest whole percent) of picking two black socks out of the drawer on consecutive picks when there are 6 blue socks, 8 black socks, and 6 white soc

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Question 945809: What is the probability (to the nearest whole percent) of picking two black socks out of the drawer on consecutive picks when there are 6 blue socks, 8 black socks, and 6 white socks in the drawer? Assume the first sock is not replaced before the second sock is chosen.
Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
For the first pick,
there is a total of 6%2B8%2B6=20 socks in the drawer.
and only 8 of them are black,
so the chance of getting a black sock is 8%2F20=2%2F5 .
So you would get a black sock 2%2F5=40%2F100=%2240%25%22 of the time.
In the 2%2F5=40%2F100=%2240%25%22 of the cases when your first pick was a black sock,
you would have 8-1=7 black socks left,
in a drawer containing a total of 20-1=19 socks.
In that case, the chance of getting a black sock for the second pick is 7%2F19=about0.3684 .
So, the overall fraction of the times that you would get two black socks out of the drawer on consecutive picks is
7%2F19 of 2%2F5=40%2F100=%2240%25%22 of the cases, or
%287%2F19%29%2A%2840%2F100%29=about0.3684%2A%2840%2F100%29=14.736%2F100=about15%2F100=highlight%28%2215%25%22%29 (rounding to the nearest whole percent).