Name: ___________________________________________________Period: _________Date:_______________
Spinners, Pennies and Dice, Oh My!
For the following problems you and your partner must find the size of the sample space, the theoretical probability
and the experimental probability (completing 10 trials) of each event. You will need to write each probability as a
fraction, decimal, and a percent. You will both be completing 10 trials of each question. (Use another piece of paper
to write down your trials)
1. Having the spinner land on red.
Sample Size:____________
Theoretical Probability:_____________________
Your Experimental Probability: ______________________
Partner’s Experimental Probability:____________________
2. Flipping a penny and having it land tails up.
Sample Size:____________
Theoretical Probability:_____________________
Your Experimental Probability: ______________________
Partner’s Experimental Probability:____________________
3. Having the spinner land on blue and rolling a 3 on the die.
Sample Size:____________
Theoretical Probability:_____________________
Your Experimental Probability: ______________________
Partner’s Experimental Probability:____________________
4. Rolling a 2 on the die and flipping a heads on the penny.
Sample Size:____________
Theoretical Probability:_____________________
Your Experimental Probability: ______________________
Partner’s Experimental Probability:____________________
5. Spinning a blue or red and rolling a number greater than 4.
Sample Size:____________
Theoretical Probability:_____________________
Your Experimental Probability: ______________________
Partner’s Experimental Probability:____________________
6. Rolling a one and a number less than 4 on the number cubes.
Sample Size:____________
Theoretical Probability:_____________________
Your Experimental Probability: ______________________
Partner’s Experimental Probability:____________________
7. Spinning a yellow, rolling a 5 and the penny landing tails up.
Sample Size:____________
Theoretical Probability:_____________________
Your Experimental Probability: ______________________
Partner’s Experimental Probability:____________________
8. Spinning a yellow or red, rolling an even number and the penny landings heads up.
Sample Size:____________
Theoretical Probability:_____________________
Your Experimental Probability: ______________________
Partner’s Experimental Probability:____________________
You and your partner must come up with two probability questions with at least 2 events for you both to complete.
You must each give the sample space, the sample size, the theoretical probability, and complete 10 trials to find the
experimental probability.
Problems 1: _____________________________________________________________________________________
Sample Space: ___________________________________________________________________________________
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Sample Size:____________
Your Experimental Probability: _____________
Theoretical Probability:__________________
Partner’s Experimental Probability:___________
Problem 2:______________________________________________________________________________________
Sample Space: ___________________________________________________________________________________
_______________________________________________________________________________________________
_______________________________________________________________________________________________
Sample Size:____________
Your Experimental Probability: _____________
Theoretical Probability:__________________
Partner’s Experimental Probability:___________
Reflection Questions:
1. What is the difference between theoretical probability and experimental probability? _______________________
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2. What do you notice about the theoretical probability and the experimental probability for each of the questions?
_______________________________________________________________________________________________
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3. What do you notice about your experimental probability and your partner’s experimental probability? _________
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4. Give an explanation for what you noticed in question 3. (Why do you think it happened that way?).
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5. What is the difference between independent events and dependent events? ______________________________
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6. Where the events in the activity independent, dependent or both? How do you know? ______________________
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7. What does it mean for an experiment to be fair? _____________________________________________________
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