Lesson 7-1 Practice Problems

The table lists the probability of four events occurring.

Which event is least likely to occur?

• Event A

• Event B

• Event C

• Event D

A box contains 1 red ball, 3 green balls, and 8 blue balls. What best defines the probability associated with picking a red ball without looking?

• Likely

• Certain

• Unlikely

• Impossible

A number cube, labeled 1 through 6, will be rolled one time. What is the likelihood of rolling a 6?

• Impossible

• Unlikely

• Likely

• Certain

Sally has a deck of cards. There are 26 red cards and 26 black cards. What is the likelihood Sally will randomly select a red card?

• Likely

• Unlikely

• Impossible

• Neither likely nor unlikely

Which spinner has a greater likelihood of landing on 5 rather than 3?

• 
• 
• 
• 

There are four colors of pencils in a large box. John will randomly select a pencil from the box. The table below shows the probability of selecting each color.

What color will John most likely select?

• Blue

• Red

• Yellow

• Green

The numbers 3, 45, 22, 35, 17, 79, and 6 are written on pieces of paper and placed in a bag. A piece of paper is chosen randomly out of the bag. How likely is it that one the paper will be an odd number?

• Impossible

• Unlikely

• Likely

• Certain

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

• 5/6
• 1/2
• 1/3
• 1/6

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CCSS.7.SP.C.7

The chart below represents the number of marbles in a jar.
P(green) = 

• 5/19
• 10/28
• 5/14

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CCSS.7.SP.C.5

What is the probability of flipping a coin and getting heads?

• 1/2
• 1/3
• 1/4
• Never, Tails never fails.

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