Theoretical Probability

Miss Cirilo flips a fair coin. What is the probability of getting tails?

• 1/4

• 5/6

• 1/2

• 2/5

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Miss Cirilo flips a fair coin 40 times. How many times can she expect tails to appear?

• 4

• 10

• 15

• 20

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What is the probability of getting a blue marble?

• 11/12

• 1/12

• 12/12

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You select a marble without looking and put it back. You do this 24 times. What is the best prediction for the number of times you will pick a blue marble?

• 11 times

• 2 times

• 22 times

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What is the theoretical probability of getting a red?

• 1/3

• 3/10

• 1/2

• 2/3

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What is the theoretical probability of getting a red if you spin the spinner 450 times?

• 150

• 400

• 1/2

• 6

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On a regular number cube, what is the probability of getting a number greater than 2?

• 8/9

• 2/6

• 4/6

• 1/6

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A regular number cube is rolled 30 times. How many times should we get a number greater than 2?

• 20

• 30

• 0

• 15

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