http://blog.spreadshirt.net/us/2007/02/20/another-brainteaser/ This is the Spreadshirt US Blog. T-shirts, style, fashion, current events and more. Tue, 24 Nov 2009 20:21:09 +0000 http://wordpress.org/?v=2.6.3 http://blog.spreadshirt.net/us/2007/02/20/another-brainteaser/#comment-1020 richj55 Wed, 21 Feb 2007 19:32:34 +0000 http://blog.spreadshirt.net/us/2007/02/20/another-brainteaser/#comment-1020 I agree with Nekkid. I agree with Nekkid.

]]> http://blog.spreadshirt.net/us/2007/02/20/another-brainteaser/#comment-1019 NekkidTees Wed, 21 Feb 2007 14:14:52 +0000 http://blog.spreadshirt.net/us/2007/02/20/another-brainteaser/#comment-1019 b b

]]> http://blog.spreadshirt.net/us/2007/02/20/another-brainteaser/#comment-1017 Joe Wed, 21 Feb 2007 06:38:11 +0000 http://blog.spreadshirt.net/us/2007/02/20/another-brainteaser/#comment-1017 I think the answer is c, too. There's a 1/6 chance of you getting the WB card with W face up, and a 1/3 chance of you getting a BB with the B face up. So, if you turn it over, you're twice as likely to get another black face than you are to get a white face (because you are twice as likely to have picked the BB card). 2:1=2/3. c! Thank you, probability tree (now, if I'm wrong I'll be embarassed... but I haven't done this in a fairly long time!). I think the answer is c, too. There’s a 1/6 chance of you getting the WB card with W face up, and a 1/3 chance of you getting a BB with the B face up. So, if you turn it over, you’re twice as likely to get another black face than you are to get a white face (because you are twice as likely to have picked the BB card). 2:1=2/3. c! Thank you, probability tree (now, if I’m wrong I’ll be embarassed… but I haven’t done this in a fairly long time!).

]]> http://blog.spreadshirt.net/us/2007/02/20/another-brainteaser/#comment-1018 Christina Tue, 20 Feb 2007 18:58:06 +0000 http://blog.spreadshirt.net/us/2007/02/20/another-brainteaser/#comment-1018 I'm fairly sure it's 2/3, because the black/black card has a greater probability of showing a black face than the black/white card, but I'd hate to have to write a proof. I’m fairly sure it’s 2/3, because the black/black card has a greater probability of showing a black face than the black/white card, but I’d hate to have to write a proof.

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