5.5 Probability as a Fraction

Probability is ...

• the chance that some event will occur.
• a game that involves coins.
• a guarantee.

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What is the probability of spinning green?

• 0

• 3/12 (which is equal to 1/4)

• 6/12 (which is equal to 1/2)

• 9/12 (which is equal to 3/4)

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A bag contains 30 pieces of candy. There are 15 grape, 7 cherry, 3 lemon, 5 strawberry. What is the probability of drawing a lemon?

• 30/30

• 3/30 (which is equal to 1/10)

• 9/30 (which is equal to 3/10)

• 15/30 (which is equal to 1/2)

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A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?

• 3/10

• 4/9

• 1/9

• 3/9 (which is equal to 1/3)

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The probability of rolling an even number on a dice.

• 2/6 (which is equal to 1/3)

• 3/6 (which is equal to 1/2)

• 1/6

• 5/6

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

• 30%
• 70%
• 100%
• 0%

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What is the probability of landing on NOT PURPLE on this spinner?

• 2/5

• 1/5

• 4/5

• 3/5

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What is the probability of spinning a 5 OR HIGHER?

• 2/6 (which is equal to 1/3)

• 5/6

• 6/6

• 1/6

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Find the probability of rolling a 7 on a single die.

• 1/6
• 7/6
• 0
• 7/7

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A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?

• 5/11
• 5/6
• 1/3
• 5

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