Understanding Probability Concepts

What probability is unlikely to occur?

• 0.1

• 0.5

• .9

• 1.9

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What probability means 50% chance of happening?

• 1.0

• 0.05

• 5.0

• .5

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What probability represents a situation that is VERY LIKELY to happen?

• 0.1

• .5

• 1.5

• .9

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Can probability every be greater than 100% (1.0)?

• Yes

• No

• Maybe

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What probability represents an event that is CERTAIN to happen?

• 1.0

• 2.0

• 0.1

• 1.1

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Ms. C forgot to charge her phone last night. It is VERY LIKELY that her phone will die while at school. What number represents that event that the phone will likely die?

• .8

• .1

• .2

• .5

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The probability that everyone studied last night is .75. What word describes the likelihood that everyone studied?

• Likely

• Unlikley

• Impossible

• Certain

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The probability that Ms. C will win a marathon is .01. What word describes the likelihood that she will win?

• likley

• unlikely

• impossible

• certain

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CCSS.7.SP.C.5

The likelihood of landing "tails" when flipping a coin is a...

• 1 in 2 chance

• 1 in 15 chance

• 2 in 1 chance

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What is most likely to occur?

• Rolling a 1 on a 6 sided dice

• Landing heads when flipping a coin

• Correctly guessing the answer on a multiple choice question with 4 potential answers

• Picking your name out of a hat with 20 other names

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