2007-10-23 22:23:50 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
There are 64 possible outcomes (8²).
The only outcomes that add up to 15 would be when you roll 7 on one die and 8 on the other. This can happen 2 ways (7-8 or 8-7). So the probability is 2/64 = 1/32
2007-10-23 22:28:19 · answer #1 · answered by Puzzling 7 · 0⤊ 0⤋
Answer=1/32
2007-10-24 05:51:38 · answer #2 · answered by harry 1 · 0⤊ 0⤋
i think its 1 in 32, but i recommend you compare that with other answers, im not super sharp on statistics,.
2007-10-24 05:30:26 · answer #3 · answered by Anonymous · 0⤊ 0⤋
here is the table of possible outcomes
___1___2___3___4___5___6___7___8
1__2___3___4___5___6___7___8___9
2__3___4___5___6___7___8___9___10
3__4___5___6___7___8___9___10__11
4__5___6___7___8___9___10__11__12
5__6___7___8___9___10__11__12__13
6__7___8___9___10__11__12__13__14
7__8___9__10___11__12__13__14__15
8__9__10__11___12__13__14__15__16
there are 64 possible outcomes and two of them have the sum of 15 so assuming the die is fair the probability is 2/64 = 1/32
2007-10-25 02:42:41 · answer #4 · answered by Merlyn 7 · 0⤊ 0⤋