# Difference between revisions of "Blank dice"

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Oscarlevin (talk | contribs) (Created page with 'Here is a probability brain teaser that I remember from a math for elementary ed class I tutored. ==Puzzle== When you roll two six sided fair dice and add the dots displayed,…') |
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− | When you roll two six sided fair dice | + | When you roll two six-sided fair dice, the total number of dots displayed can be anything from 2 to 12. However, some sums are more likely than others. Now suppose you have two six-sided fair dice, with no dots on any of the faces (they are blank). Armed with only a marker pen and your puzzle-solving prowess, how can you draw dots on the dice so that each possible sum will appear with equal probability? |

[[Category: Probability]] | [[Category: Probability]] |

## Revision as of 07:04, 13 October 2010

Here is a probability brain teaser that I remember from a math for elementary ed class I tutored.

## Puzzle

When you roll two six-sided fair dice, the total number of dots displayed can be anything from 2 to 12. However, some sums are more likely than others. Now suppose you have two six-sided fair dice, with no dots on any of the faces (they are blank). Armed with only a marker pen and your puzzle-solving prowess, how can you draw dots on the dice so that each possible sum will appear with equal probability?