math
posted by Carli on .
Two dice are rolled. Find the odds that the score on the dice is either 10 or at most 5.

Since each die has 6 numbers, there are 36 possible combinations with two dice.
10 can only be obtained by 5 & 5, 6 & 4 or 4 & 6 = 3/36
"At most 5" = 5 or less, which can be obtained by 1 & 1, 2 & 2, 3 & 2, 2 & 3, 1 & 2, 2 & 1, 1 & 3, 3 & 1, 1 & 4 or 4 & 1 = 10/36
The probability of "eitheror" events is obtained by adding the probability of the separate events. 
the Odds in favor of getting 7