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Here is a probability brain teaser that I remember from a math for elementary ed class I tutored. | Here is a probability brain teaser that I remember from a math for elementary ed class I tutored. | ||
Revision as of 17:58, 23 November 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?
Hint