Question

Which of the events below is an example of a conditional probability?

The probability of rolling a three given that you rolled an odd number.
The probability of rolling a three followed by an odd number.
The probability of rolling an odd number that happens to be three.

Answer 1

Its A because it occurs on the condition that something else happens

Answer 2

The probability of rolling a three given that you rolled an odd number.

Explanation:

Conditional probability is the probability of one event ocurring related to another event. In other words, the probability of one event happening, when another happened already.

So, in this case, the first choice indicates a conditional probability, where the condition is "you rolled an odd number", and the depending event is "rolling a three".

Therefore, the right answer is the first choice.