1. Monopoly Game Example
Mutually Exclusive

2. Problem:
Laura is playing Monopoly. On her next move she needs to throw a sum bigger than 8 on the two dice in order to land on her own property and pass GO.
What is the probability that Laura will roll a sum bigger than 8?

3. Solution:
The only sums larger than 8 are 9, 10, 11, and 12
The outcomes are MUTUALLY EXCLUSIVE
P(9 or 10 or 11 or 12)
P(9) + (10) + (11) + (12) =

4. How can we get a 9 on two dice?
Die Die 2
Since there are 36 total outcomes and there are 4 ways to get a 9, the probability of getting a 9 on two dice is 4/36

5. Compute the probabilities for 10, 11, and 12
the same way
P(10) = 3/36
P(11) = 2/36
P(12) = 1/36

6. Since the outcomes are mutually exclusive, ADD the probabilities
P(9) + P(10) + P(11) + P(12) =
4/ / / /36 =
10/36 = 5/18