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Probability question & dice rolls

RhinoRhino TheRhinLOLRegistered User regular
edited April 2009 in Help / Advice Forum
What is the probability of rolling a 20 sided dice and having it land on the same number three times in a row?

For bonus points, what is the probability of it hitting a specific pre-determined number each time (for example, 7)

Rhino on


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    shadydentistshadydentist Registered User regular
    edited April 2009
    Q1: (1/20)^3 * 20 = 1/400

    (Same as explanation for Q2, but multiply by 20 because there are 20 possible numbers to get 3 of)

    Q2: (1/20)^3 = 1/8000

    (1/20 chance to hit that number for each dice)

    shadydentist on
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    RhinoRhino TheRhinLOL Registered User regular
    edited April 2009
    Wow, thanks that was fast.

    Rhino on
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