[Puzzler] Red & Blue cards

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Mike
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[Puzzler] Red & Blue cards

Postby Mike » Wed Jul 19, 2017 2:19 pm

You have a bag with three cards in it. One card is blue on both sides. One card is red on both sides. The last card has one red side and one blue side.

Without looking, you pull a random card from the bag and place it on the table. When you look, you see that the side facing up is blue. What is the probability that the other side of that card is blue?
All I know is my food tastes better when I take my food-tastes-better pill.
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Kyle
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Re: [Puzzler] Red & Blue cards

Postby Kyle » Wed Jul 19, 2017 2:55 pm

Is this just another expression of the Monty Hall problem?

Answer:

At least, that's my take on it.

Unless this is the inverse of the Monty Hall problem.

Or when you say, "What is the....

Fuck this. I'm overthinking this. I don't know.
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Re: [Puzzler] Red & Blue cards

Postby Kyle » Wed Jul 19, 2017 2:57 pm

No. I'm changing my answer:

Fuck you, Mike. And fuck you to this stupid problem because I"m still not sure that's right.
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Re: [Puzzler] Red & Blue cards

Postby Mike » Wed Jul 19, 2017 2:58 pm

It's not. Sorry.
All I know is my food tastes better when I take my food-tastes-better pill.
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Re: [Puzzler] Red & Blue cards

Postby Kyle » Wed Jul 19, 2017 3:00 pm

I looked up the answer.

Fuck you.
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Re: [Puzzler] Red & Blue cards

Postby Mike » Wed Jul 19, 2017 3:21 pm

I woulda told you.
All I know is my food tastes better when I take my food-tastes-better pill.
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Zen
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Re: [Puzzler] Red & Blue cards

Postby Zen » Wed Jul 19, 2017 3:38 pm

I would think...
"The lines between kindness, apathy, and thickheadedness can be very thin." - Nakatani Nio Sensei
“The direction of escape is toward freedom. So what is ‘escapism’ an accusation of?” - Ursula K. Le Guin
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Re: [Puzzler] Red & Blue cards

Postby Mike » Wed Jul 19, 2017 3:47 pm

That is everyone's initial reaction, and it is wrong. This puzzle is labeled as "Counter-intuitive."
All I know is my food tastes better when I take my food-tastes-better pill.
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Re: [Puzzler] Red & Blue cards

Postby Eliahad » Wed Jul 19, 2017 3:52 pm

"What are you going to do?"
"I'm going to roll an 8."
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Re: [Puzzler] Red & Blue cards

Postby Mike » Wed Jul 19, 2017 3:56 pm

Eli is a smarty.
All I know is my food tastes better when I take my food-tastes-better pill.
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Zen
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Re: [Puzzler] Red & Blue cards

Postby Zen » Wed Jul 19, 2017 4:47 pm

It has been eons since I did this crap...
"The lines between kindness, apathy, and thickheadedness can be very thin." - Nakatani Nio Sensei
“The direction of escape is toward freedom. So what is ‘escapism’ an accusation of?” - Ursula K. Le Guin
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Re: [Puzzler] Red & Blue cards

Postby Mike » Wed Jul 19, 2017 4:55 pm

Exactly. Way counter-intuitive.
All I know is my food tastes better when I take my food-tastes-better pill.
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Re: [Puzzler] Red & Blue cards

Postby Stan » Thu Jul 20, 2017 11:29 am

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Re: [Puzzler] Red & Blue cards

Postby Phoebe » Thu Jul 20, 2017 10:35 pm

I've seen this one in a different context and forgot what I was supposed to recall about it.
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