Posted by ruth on Wednesday, March 2, 2011 at 11:48pm.
Determine the probability of rolling a sum of 9 or an odd number with two
number cubes.

math (algebra 1)  PsyDAG, Thursday, March 3, 2011 at 11:00am
9 = (5,4)(4,5)(3,6)(6,3)
P(9) = 4/36
P(odd) = P(3) + P(5) + P(7) + P(9) + P(11)
Note that P(9) is included in P(odd).