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

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 describe the probability that the pointer lands on blue? • AImpossible
• BEqually 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 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 2. • Aimpossible
• Blikely
• Cunlikely
• Dcertain

Q8:

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 1. • Aimpossible
• Blikely
• Ccertain
• Dunlikely

Q9:

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 8. • Acertain
• Blikely
• Cimpossible
• Dunlikely

Q10:

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

Q11:

What is the probability of a man living forever?

• Abetween 0 and 1
• B0
• C1

Q12:

What is the probability of the weather tomorrow being sunny?

• A1
• Bbetween 0 and 1
• C0

Q13:

Which of the following might represent a probability?

• A
• B1.8
• C
• D

Q14:

Anthony has 19 colored beads in a bag: 2 are red, 6 are blue, 4 are green, and the rest are yellow. If he selects one at random without looking, is it certain, likely, unlikely, or impossible that a yellow bead is chosen?

• Aimpossible
• Blikely
• Ccertain
• Dunlikely

Q15:

Daniel writes numbers on separate pieces of paper. He puts the pieces of paper in a bag and selects one without looking. The number 1 is written on 9 pieces of paper, the number 2 is written on 8 pieces of paper, and the number 3 is written on 6 fewer pieces of paper than the number 2. Is it certain, likely, unlikely, or impossible that he picks the number 1 or 2?

• Acertain
• Bunlikely
• Clikely
• Dimpossible

Q16:

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

Q17:

What is the probability of an impossible event?

Q18:

Complete using certain, likely, or impossible: It is that a shark could swim to the moon and live happily.

• Aimpossible
• Blikely
• Ccertain

Q19:

What is the probability of an impossible event?

Q20:

What is the probability of an event that is certain to occur?

Q21:

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

Q22:

A spinner has 35 equal sections of which are blue, are red, are orange, and are purple. When the spinner is spun, it is equally likely that the pointer lands on any of the sections. What is the most probable color for the spinner to land on?

• ABlue
• BPurple
• COrange
• DRed

Q23:

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

Q24:

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

Q25:

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