U11: Probability Review

Probability is ...

• the chance that some event will occur.
• a game that involves coins.
• a guarantee.

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CCSS.7.SP.C.5

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P(not A) = 
*Remember to simplify.*

• 6/8
• 3/4
• 2/8
• 1/4

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CCSS.7.SP.C.5

CCSS.7.SP.C.7

An unlikely chance event is closer to what number?

• 0
• 1
• 2
• 3

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CCSS.7.SP.C.5

A bag contains 1 red marble, 2 blue marbles, and 3 green marbles. What is the probability of picking a red marble?

• 1/6

• 1/3

• 1/5

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CCSS.7.SP.C.5

CCSS.7.SP.C.7

Every 3 out of 12 vehicles on a highway is a truck. How many trucks are expected to be on a highway with 3,600 vehicles?

• 300

• 600

• 900

• 1,200

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CCSS.7.RP.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Amanda spins a spinner numbered 1 to 10. What is the probability that the spinner lands on an odd number or a number that is divisible by 3?

• $\frac{4}{5}$

• $\frac{3}{5}$

• $\frac{1}{5}$

• $\frac{3}{20}$

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CCSS.7.SP.C.5

CCSS.7.SP.C.7

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Thirty-two percent of families residing in a rural, farming town own a goat and 41% of families own a dog. Twenty-four percent of families own both types of animals. If a family from this town is chosen at random, what is the probability that it owns either a goat or a dog?

• 0.15

• 0.33

• 0.49

• 0.97

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CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

To win a prize in a game, a player must throw a ball into a basket or kick a ball through a goal.

• The probability that the player will throw the ball into the basket is 0.30.

• The probability that the player will kick the ball through the goal is 0.20.

• The probability that the player will throw the ball into a basket and kick the ball through the goal is 0.06.

What is the probability that the player will either throw the ball into the basket or kick the ball through the goal, but NOT both?

• 0.04

• 0.44

• 0.50

• 0.56

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CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

If P(A) = 0.24, P(B) = 0.41, and P(A and B) = 0.18, what is P(A or B)?

• 0.17

• 0.47

• 0.59

• 0.65

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CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

What is the probability that a student does play a sport given they do not play an instrument? 

• .2
• .2222
• .10
• .5

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CCSS.7.SP.C.5

CCSS.7.SP.C.7