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).

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