Question

WILL REWARD!!

What is the theoretical probability of rolling a sum of 6 on one roll of two standard number cubes?

A. 1/9
B. 5/36
C. 1/12
D. 1/6

Answer 1

The sample space has 36 possible combinations of numbers. These can be set out in column form as follows:
6,6 5,6 4,6 3,6 2,6 1,6
6,5 5,5 4,5 3,5 2,5 1,5
6,4 5,4 4,4 3,4 2,4 1,4
6,3 5,3 4,3 3,3 2,3 1,3
6,2 5,2 4,2 3,2 2,2 1,2
6,1 5,1 4,1 3,1 2,1 1,1
First you need to find the number of outcomes where the sum of the combination is 6. Then divide that number by 36 to find the required theoretical probability.

Answer 2

I got 11 outcomes and when i divided it I got .3055555556

Answer 3

I get fewer outcomes than you got. There are none in the first column. How many in the second column?

Answer 4

There are 5 possible outcomes total am i correct?

Answer 5

@kropot72

Answer 6

Yes, there are 5 qualifying outcomes. So can you see the answer now?

Answer 7

Yes 5/36 is the answer