Experimental or Theoretical Probability

Find the experimental probability:
Roll dice:  1, 3, 3, 4, 4
P(3) = 

• 3/5

• 1/6

• 2/5

• 1/3

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

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

• 10

• 20

• 30

• 40

What is the probability of spinning a blue or red?

• unlikely

• equally likely

• likely

• certain

You tossed a die 30 times and recorded the results in the table.

What is the experimental probability of rolling a two?

Write as a simplified fraction.

Mathematical Equivalence

OFF

You tossed a die 30 times and recorded the results in the table.

What is the experimental probability of rolling a 3 or a 6?

Write as a percent rounded to the nearest tenth.

Do NOT write the percent sign.

Mathematical Equivalence

OFF

_____ probability is what actually happened based on results.

• Experimental

• Theoretical

There are 5 red marbles, 7 green marbles, 4 black marbles, and 8 blue marbles in a bag. Suppose you select one marble at random.

What is the probability of selecting a red marble?

Write as a simplified fraction.

Mathematical Equivalence

OFF

What is the probability of selecting a green or black marble?

Mathematical Equivalence

OFF

You have a standard game die with the numbers 1-6.

What is the probability of rolling an odd number?

Write as a percent.

Do NOT write the percent sign.

Mathematical Equivalence

OFF