# Lesson Worksheet: Probability: Certain, Likely, Unlikely, Impossible Mathematics

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

Q1:

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

Q2:

Which outcome is least likely when spinning the arrow on this spinner? • A
• B
• C
• D

Q3:

If this spinner is spun once, is it certain, likely, unlikely, or impossible that the pointer stops on the number 5 or 6? • Aunlikely
• Bimpossible
• Clikely
• Dcertain

Q4:

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

Q5:

Is it more likely, equally likely, or less likely that this spinner lands on red rather than green? • Aless likely
• Bmore likely
• Cequally likely

Q6:

If the spinner is spun once, is it certain, likely, unlikely, or impossible that the spinner lands on the number 6? • Acertain
• Bimpossible
• Clikely
• Dunlikely

Q7:

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

Q8:

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

Q9:

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

Q10:

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

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