What does the term 'probability' mean?

• A measure of how likely an event is to occur, expressed as a number between 0 (impossible) and 1 (certain).

• The likelihood of an event happening, usually expressed as a percentage.

• A statistical measure of the average outcome of an event.

• The certainty that an event will not occur.

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CCSS.7.SP.C.5

What is the likelihood scale?

• A way to measure temperature

• A method for categorizing events as impossible, unlikely, likely, very likely, and certain

• A scale used for measuring distances

• A technique for assessing financial risks

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CCSS.7.SP.C.5

What does it mean if an event is described as 'unlikely'?

• It means that the event has a high probability of occurring, typically more than 50%.

• It means that the event has a low probability of occurring, typically less than 50%.

• It means that the event is certain to happen.

• It means that the event is impossible to happen.

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What probability percentage is considered 'very likely'?

• 50% or higher

• 70% or higher

• 90% or higher

• 100% or higher

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CCSS.7.SP.C.5

What probability percentage is considered 'as likely as not'?

• 25%

• 50%

• 75%

• 100%

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CCSS.7.SP.C.5

What is the likelihood of flipping a coin and landing on heads?

• 25%

• 50%

• 75%

• 100%

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What probability percentage is considered 'impossible'?

• 25%

• 50%

• 0%

• 100%

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CCSS.7.SP.C.5

What probability percentage is considered 'likely'?

• A probability percentage less than 25%

• A probability percentage between 25% and 50%

• A probability percentage greater than 50% but less than 100%

• A probability percentage of exactly 100%

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CCSS.7.SP.C.5

What probability percentage is considered 'certain'?

• 50%

• 75%

• 100%

• 90%

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CCSS.7.SP.C.5

How can we express the likelihood of an event that is certain?

• As a probability of 50%

• As a probability of 75%

• As a probability of 100%

• As a probability of 0%

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CCSS.7.SP.C.5