probability
posted by Sharon .
Two dice can be tossed in 36 ways. In how many of these is the sum equal to:
a.) 4
b.) 7
c.) 11

How many ways can 4 be made up:
1 3
2 2
3 1
That makes 3 ways out of 36.
Probability = 3/36 = 1/12
Repeat same for 7 and 11.