# Lesson Worksheet: Probability Mathematics

In this worksheet, we will practice describing probability using words like “certain,” “likely,” “unlikely,” and “impossible.”

**Q1: **

A spinner is divided into 10 equal sectors numbered 1 through 10. If the spinner is spun, is it certain, likely, unlikely, or impossible that it lands on a number less than 4?

- Alikely
- Bunlikely
- Cimpossible
- Dcertain

**Q2: **

If the spinner is spun once, determine whether it is certain, likely, unlikely, or impossible that the pointer stops on a number that is a multiple of 3.

- Aimpossible
- Blikely
- Cunlikely
- Dcertain

**Q3: **

What is the probability of rolling a number which is greater than 6 on a fair die?

**Q4: **

There are 15 letter tiles in a bag: six tiles are labeled S, eight tiles are labeled R, and one is labeled M. Which of the following describes how likely it is to choose the letter M?

- AUnlikely
- BCertain
- CLikely
- DImpossible

**Q5: **

A bag contains 35 marbles, 34 of which are blue. If a marble is picked out at random, what is the likelihood of it being blue?

- Aunlikely
- Bimpossible
- Clikely
- Dcertain

**Q6: **

When this spinner is spun, which of the following describes the probability that the arrow lands on a sector that is NOT yellow?

- ACertain
- BUnlikely
- Clikely
- DEqually likely that it happens or does not happen
- EImpossible

**Q7: **

If this spinner is spun, which of the following describes the probability that the pointer lands on blue?

- AImpossible
- BIt is equally likely for it to happen or not happen.
- CLikely
- DCertain
- EUnlikely

**Q8: **

If this spinner is spun once, it is certain, likely, unlikely, or impossible that it stops on an even number?

- Aimpossible
- Blikely
- Cunlikely
- Dcertain

**Q9: **

Which outcome is least likely when spinning the arrow on this spinner?

- A
- B
- C
- D

**Q10: **

Which outcome is most likely when spinning the arrow on this spinner?

- AQ
- BR
- CP
- DS