Basic Probability

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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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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What is the probability of selecting an orange candy?

• 0%
• 25%
• 50%
• 100%

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Determine the likelihood of the following event: 
Drawing a red card from a standard deck of cards

• 1/2
• 13/52
• 1/4
• 4/52

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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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Rolling a 15 on a number cube is 

• Impossible
• Certain
• Unlikely
• Equally Likely

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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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