Blank dice: Difference between revisions
Jump to navigation
Jump to search
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,…' |
m Hyphenation, internationalise by avoiding brand name, stylistic improvements. |
||
| Line 3: | Line 3: | ||
==Puzzle== | ==Puzzle== | ||
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 06:04, 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?