Thursday, March 26, 2009

Six Sides Faceup

With a standard six-sided die, how many throws are required on average before each of the six numbers has landed faceup?
1. 10
2. 15
3. 20
4. 25
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1 comment:

  1. bdavisMarch 30, 2009 at 5:30 PM

    I'm guessing (at least) 20, especially if it were me rolling the die.

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