Question

A fair dice is rolled.

Work out the probability of getting a 3.
Give your answer as a fraction in its simplest form.

Answer 1

Answer: 1/6

Step-by-step explanation: To find the probability of rolling a 3, let's use our ratio for the probability of an event which is shown below.

P(event) = number of favorable outcomes/total number of outcomes

Since only one side of a number cube has a 3 on it, the number of favorable outcomes for rolling a 3 is 1 and since there are six sides to a number cube and it's equally likely that the cube will land on any of these sides, the total number of outcomes is 6.

So the probability of rolling a 3 is 1/6.

Notice that 1/6 is already written in lowest terms so it's our final answer.