Experimental & Theoretical Probability

Probability is ...

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

Probability can be written as ...

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

What is the experimental probability of choosing a red card?
Hint: Count the hearts and diamonds.

• 11/25
• 26/52
• 0/52
• 9/52

What is the experimental probability of landing on orange or red?

• 2/5
• 3/8
• 3
• 10 times

What is the experimental probability of choosing an even number?

• 11/20
• 10/20
• 1/2
• 0/20

The probability based on frequency of outcomes during an experiment

•  experimental probability
• fundamental counting principle
• mutually exclusive event
• dependent event

What is the experimental probability of tails? (based on image)

• 1/2
• 7/16
• 9/16

A spinner is marked with four sections and was spun 100 times. What is the experimental probability of landing on red and blue?

• 14%
• 82%
• 68%
• 100%

Based on this experiment, what is the probability that a girl in athletics is chosen? 

• 22/37
• 15/37
• 11/40
• 7/10

  Which of the following describes theoretical probability?

• a.  Perform an experiment to determine the probability
• a.      Determining the expected probability of an event
• a.  Perform a simulation and count the number of possible outcomes
• a.  Use trials to count the number of desired outcomes