Probability - What do you already know?

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

CCSS.7.SP.C.7

CCSS.7.SP.C.6

Probability can be written as ...

• a fraction
• a decimal
• a percent
• all of the above

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CCSS.7.SP.C.5

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.5

CCSS.7.SP.C.7

A likely chance event is closer to what number?

• 0
• 1
• .5
• 100

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CCSS.7.SP.C.5

CCSS.7.SP.C.7

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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CCSS.7.SP.C.5

The probability of it raining today is 30%.  What is the probability that it will NOT rain?

• 30%
• 70%
• 100%
• 0%

Tags

CCSS.7.SP.C.5

Independent probability happens when the probability of the first event does not affect the probability of the second event.

• True

• False

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CCSS.HSS.CP.A.2

CCSS.HSS.CP.A.4

CCSS.HSS.CP.A.5

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.8

Dependent probability happens when the first item is replaced, causing the total outcomes to increase by 1.

• True

• False

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

What are mutually exclusive events?

• Events that can happen at the same time

• Events that cannot happen at the same time

• Events that add up to 100%

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CCSS.HSS.CP.B.7

Rolling a 6 or an even number

• Mutually exclusive

• Not mutually exclusive

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CCSS.HSS.CP.A.2

CCSS.HSS.CP.A.4