3.1.13 Probability and Odds

Usually these problems involve applying the definitions of Odds and Probability which are:

$$\text{Probability} = \frac{\text{Desired Outcomes}}{\text{Total Outcomes}}$$ $$\text{Odds} = \frac{\text{Desired Outcomes}}{\text{Undesirable Outcomes}}$$

So the probability of rolling snake-eyes on a dice would be $1/36$ while the odds of doing this would be $1/35$. Usually the problems involving odds and probability on Number Sense tests are relatively simple where desired outcomes can be computed by counting. The following are some practice problems so you can be familiar with the types of problems asked:

Problem Set 3.1.13