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Die Toss (Posted on 2003-07-24) Difficulty: 2 of 5
A die is tossed until the sum of the rolls is 15 or greater.

What is the most likely total? What is the the least likely total which can occur?

See The Solution Submitted by Brian Smith    
Rating: 4.3750 (8 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: Solution to half the problem | Comment 9 of 11 |
(In reply to Solution to half the problem by Sohini)

the least likely total is 90, but then again the least likely total is also 89, 88 etc etc... because you have to stop once you get higher than 15.... there are 6 numbers on a die, so the largest sum you can ever achieve is 20......... 21+ has a 0% probability....
  Posted by sean on 2005-08-24 02:37:56

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