Hi there
I have the following problem.
I have 7 dies and if i roll exactly three 6's i win.
I've tried to calculate the possibility but i get different results depending on the method.
First method:
Look at each dice and calculate the following:
(1/6)^3 * (5/6)^4 = 0,00223
Second method:
Look at the number of permutations with 7 dies (with repetition):
6^7 = 279936
Look at how many permutations you can make when choosing 3 out of 7 (with repetition):
7^3 = 343
343/279936 = 0,00122
am i way off or am i missing something?
/ztyL
I have the following problem.
I have 7 dies and if i roll exactly three 6's i win.
I've tried to calculate the possibility but i get different results depending on the method.
First method:
Look at each dice and calculate the following:
(1/6)^3 * (5/6)^4 = 0,00223
Second method:
Look at the number of permutations with 7 dies (with repetition):
6^7 = 279936
Look at how many permutations you can make when choosing 3 out of 7 (with repetition):
7^3 = 343
343/279936 = 0,00122
am i way off or am i missing something?
/ztyL