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Black and white socks (Posted on 2015-09-29) Difficulty: 2 of 5
You are in your friend's home.You are asked by your friend,
a mathematician to enter a totally dark room and to pick up a pair of socks from a certain drawer.
You are told that there are some socks in that drawer, and that each can be either black or white.
You are told as well that the probability of picking at random two black socks is 1/2.

What is the probability of taking out a pair of white socks from the drawer?

No Solution Yet Submitted by Ady TZIDON    
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Comments: ( Back to comment list | You must be logged in to post comments.)
Some Thoughts re: surprises | Comment 6 of 8 |
(In reply to surprises by xdog)

1. Tnx a lot for the hyperlink. The text referred is interesting and nicely presented.

2. FYI: when you edit your previously edited post you can erase the previously added statement(s) (like  Edited on September  etc)
so only  the last remains.


  Posted by Ady TZIDON on 2015-09-30 00:23:43
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