Making Predictions: Theoretical and Experimental Probability

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

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

On a 6-sided die, which is more likely?

• Rolling an odd number

• Rolling an even number

• They are both equally likely.

• Neither because 1 is not a prime number

If the spinner is spun 80 times, how many times would it land on yellow? (hint:set up a proportion)

• 10

• 20

• 30

• 40

In a random survey of 50 students at Great Middle School, 32 said chocolate was their favorite flavor of yogurt. The school has 450 students. How many of them are likely to select chocolate as their favorite flavor? 

• 144

• 162

• 225

• 288

What is the theoretical probability that an even number will be rolled on a number cube?

• 1/3

• 1/2

• 2/3

• 1/6

What was the experimental probability of how many times an even number was actually rolled using the table?

• 2/3

• 5/7

• 5/12

• 1/2

If you roll a number cube 36 times, how many times would you expect to roll the number one?

• 1

• 6

• 8

• 18

How many times was the number one rolled in the experiment?

• 1

• 6

• 8

• 18

What is the theoretical probability for rolling a number greater than 4?

• 1/6

• 1/3

• 1/2

• 2/3