Theoretical and Experimental Probability

What is Theoretical Probability?

• The ratio of favorable outcomes to the total number of possible outcomes
• The ratio of favorable outcomes to the total number of trials in an experiment
• In probability, a controlled, repeated process (such as repeatedly tossing a coin).
• A single possible result.

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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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You spin the spinner. How many possible outcomes are there?

• 4
• 8
• 1
• 6

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Find the theoretical probability of landing on orange or red if you spin the spinner.

• 0
• 3/8
• 2/8
• 1/4

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In a cup are the numbers 1 - 20. Find the theoretical probability of 
picking an even number. 

• 10/20
• 1/2
• 1/20
• 20/20

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An experiment consists of rolling a fair number cube. Find the theoretical probability of rolling a 3.

• 1/6
• 3/6
• 1
• 1/2

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An experiment consists of rolling a fair number cube. Find the theoretical probability of rolling an 8.

• 0
• 8/6
• 4/3
• 1/2

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Find the theoretical probability of NOT landing on yellow if you spin the spinner.

• 1/8
• 7/8
• 1
• 7

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Kate has a deck of cards. Find the probability of picking a red 4.

• 2/52
• 1/26
• 2/26
• 1/52

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Chandesh has a deck of cards. Find the probability of picking a face card (Jack, Queen, King).

• 12/52
• 1/26
• 3/13
• 3/52

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