Simple Probability

Probability is ...

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

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Experimental Probability is:

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

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What is an outcome?

• The result of an experiment
• The chance or likelihood of an event
• A fraction, decimal, or a percent
• An activity that gives various results

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Probability can be written as ...

• a fraction
• a decimal
• a percent
• all of the above

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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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A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

• 5/6
• 1/2
• 1/3
• 1/6

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The chart below represents the number of marbles in a jar.
P(green) = 

• 5/19
• 10/28
• 5/14

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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
• 3/9
• 1/9
• 1/3

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P(not A) = 
*Remember to simplify.*

• 6/8
• 3/4
• 2/8
• 1/4

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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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