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Mind Your Decisions

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Cognitive Reflection Test (like a 3 question IQ test). How many can you get right?
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Mind Your Decisions

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Monday Puzzle! On a square-shaped lazy susan turntable, a card is placed on each of the four corners. You are in a dark room and cannot see if the cards are face-up or face-down. Your job is to get all four of the cards to be face-up or face-down.

On a given turn, you can flip over any or all of the cards. Then you press a button to verify your guess. If you are correct, you win and the game ends. Otherwise, the square lazy susan is spun and rotates a random number of times (each rotation being 90 degrees). Then you start another turn.

Is there a way you can win this game for sure?
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Excited to present an interview with Steve Tadelis - an economist at eBay and professor at Berkeley's Haas Business School - and who was my advisor at Stanford
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Have them in circles
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Mind Your Decisions

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MONDAY PUZZLE! The Straw That Broke the Camel's Back

One by one straws are placed on a mathematical camel’s back. The straws have random weight, being drawn independently from the uniform distribution 0 to 1. The camel’s back breaks when the total weight of the straws exceeds 1.

Is the final straw really the same as any other straw? What’s the expected weight of the straw that breaks the camel’s back?

http://mindyourdecisions.com/blog/2014/04/07/monday-puzzle-the-straw-that-broke-the-camels-back/#.U0IX1_ldV8E
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The math of nutrition labels: why 2 percent milk is 34 percent fat
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Have them in circles
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Game theory and personal finance blog