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Simple probability problem


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7 replies to this topic

#1 bonanova

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Posted 08 May 2012 - 09:21 AM

Four cards are taken from a standard deck, one from each suit.
They are shuffled and dealt face down on a table.
Coins are then placed at random on two of the cards.

What is the probability that the two chosen cards are the same color?
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The greatest challenge to any thinker is stating the problem in a way that will allow a solution.
- Bertrand Russell

#2 Morningstar

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Posted 08 May 2012 - 02:31 PM

Spoiler for tentative answer
Spoiler for reasoning

Edited by Morningstar, 08 May 2012 - 02:41 PM.

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The cake is a lie.

#3 Barcallica

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Posted 08 May 2012 - 02:58 PM

Spoiler for On first thought

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#4 WitchOfSecrets

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Posted 08 May 2012 - 06:18 PM

Two answers.

Spoiler for first


Spoiler for second

Edited by WitchOfSecrets, 08 May 2012 - 06:19 PM.

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#5 Peekay

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Posted 09 May 2012 - 02:36 AM

Spoiler for I think...

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#6 Morningstar

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Posted 10 May 2012 - 02:15 PM

Something makes me feel like this is too easy. Maybe it's bonanova's mysterious smiley face avatar. Then again, I may be over-thinking.
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The cake is a lie.

#7 Molly Mae

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Posted 10 May 2012 - 04:23 PM

Spoiler for Not 42

Edited by Molly Mae, 10 May 2012 - 04:24 PM.

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A recipe for honey-pickled apples


Awards:

Bonanova Gold Star

Spoiler for Molly's Rules to Live By

#8 mmiguel

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Posted 03 September 2012 - 08:43 AM

Four cards are taken from a standard deck, one from each suit.
They are shuffled and dealt face down on a table.
Coins are then placed at random on two of the cards.

What is the probability that the two chosen cards are the same color?


Spoiler for

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