Question

A​ 12-sided die is rolled. The set of equally likely outcomes is {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}. Find the probability of rolling a 9.

Answer 1

1/12

Explanation:

Since all are equally likely, each outcome has a probability of 1/12.

P(9) = 1/12

Answer 2

1/12

Explanation:

The probability of rolling a nine is given by the number of good outcomes over the total outcomes

P(9) = number of 9's / total

=1/12