8G - Probability

A fair die is rolled. What is the probability of rolling a 5?

A fair die is rolled. What is the probability of rolling an even number?

State the sample space of the complement of ‘rolling a 5’ on a fair die.

What is the probability that a 5 is not rolled on a fair die?

What is the probability of rolling a 14 on a fair die?

• 0

• 1

Five cards have the numbers 1, 2, 3, 4, and 5 written on them. What is the probability of selecting an odd number?

Five cards have the numbers 1, 2, 3, 4, and 5 written on them. What is the probability of selecting the number 2?

Five cards have the numbers 1, 2, 3, 4, and 5 written on them. What is the probability of selecting a number which is at most 4?

Five cards have the numbers 1, 2, 3, 4, and 5 written on them. What is the probability of selecting a number which is at least 2?

Using phrases like ‘at least’ and ‘at most’, how would you describe the event of selecting the numbers 1 and 2?

• At least 1

• At most 2

• At least 2

• At most 1