
Patrick D. answered 04/25/17
Tutor
5
(10)
Patrick the Math Doctor
There are 36 candidates in the sample space represented
by the table below.
Of those, there are six way to get a sum less than five:
1 + 1= 2 <--- snake eyes
1 + 2 = 3
2 + 1 = 3
2 + 2 = 4
1 + 3 = 4
3 + 1 = 4
So the probability is 6/36 = 1/6 = 16.6666.....% = 16 and 2/3 %
Here's the table:
1 2 3 4 5 6
----------------------------------------------------------
1 2 3 4 5 6 7
2 3 4 5 6 7 8
3 4 5 6 7 8 9
4 5 6 7 8 9 10
5 6 7 8 9 10 11
6 7 8 9 10 11 12