Answer
Probability of getting an odd number = $\frac{1}{2}$
Work Step by Step
When a die is rolled, probability
= $\frac{Number of favorable outcomes}{Total number of outcomes}$
When a die is rolled, total number of outcomes = {1, 2, 3, 4, 5, 6} = 6
When getting a odd number, the favorable outcomes = (1, 3, 5) = 3
When a die is rolled, probability of getting a odd number = $\frac{3}{6}$
= $\frac{1}{2}$
