# 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