7th Grade Probability Review

The probability of flipping a coin and landing on tails is 1/2.
If you flip the coin 100 times, approximately how many times could you expect to land on tails?

• 50 times
• 100 times
• 200 times

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A container has 1 blue block and 3 yellow blocks. You want to make the probability of randomly selecting a green block equal to 50%. How many green blocks should you add?

• 1 green block
• 4 green blocks
• 10 green blocks
• 5 green blocks

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A dartboard has 4 equal sections, of which 2 are orange.
What is the probability that a dart will land in an orange section?

• 1/2
• 2/4
• 50%
• All of the above

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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?

• 3
• 1/10
• 3/10
• 30%

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P(not A) = 
*Remember to simplify.*

• 6/8
• 3/4
• 2/8
• 1/4

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Shannon has a bag of jelly beans. She removed on jelly bean, recording the color, and then replaced it. She repeated the process several times and record her results in the table. What is the experimental probability of her selecting a red jelly bean?

• 11/33
• 1/3
• 11/44
• 18/26

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What is the probability of spinning the spinner and landing on 7?

• 6/8
• 1/8
• 7/8
• 8/8

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Experimental Probability is:

• What Will happen 
• What actually happens
• What should happen
• What I think Happens

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Theoretical Probability is

• What Should happen
• What does happen
• What Will Happen
• What I want to Happen

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What is the probability of flipping a coin and getting heads?

• 1/2
• 1/3
• 1/4
• Never, Tails never fails.

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