Math Antics probability 7th grade Quiz

What is the probability of flipping heads in a coin toss?

• 1/4

• 1/3

• 1/2

• 1/6

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What does a probability of 1 mean?

• The event is uncertain

• The event is unlikely

• The event is impossible

• The event is definitely going to happen

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What is the probability of rolling a 3 with a standard die?

• 1/4

• 1/3

• 1/6

• 1/2

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CCSS.7.SP.C.5

How can probabilities be written?

• Only as fractions

• Only as decimals

• As fractions, decimals, or percentages

• Only as percentages

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What is the probability of spinning a 12 on a spinner with 16 equally sized sectors?

• 1/6

• 1/12

• 1/16

• 1/8

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CCSS.7.SP.C.5

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What is the probability of pulling out a green marble from a bag with 3 green, 7 yellow, and 1 white marble?

• 3/11

• 1/3

• 7/11

• 1/11

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If you add up the probabilities of all possible outcomes of a trial, what is the total?

• 1

• 0

• 1/2

• 2

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What does a probability less than one-half indicate?

• The event is unlikely

• The event is impossible

• The event is likely

• The event is certain

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CCSS.7.SP.C.5

What is the probability of spinning a yellow on a spinner with 5 blue and 11 yellow sectors?

• 11/16

• 5/16

• 1/2

• 1/4

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CCSS.7.SP.C.5

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Why do results get closer to expected probabilities with more trials?

• Because of predictability

• Because of the law of averages

• Because of randomness

• Because of certainty

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