Assignment 1.3 - Experimental v. Theoretical Prob.

Bradley spun the spinner 40 times and recorded his results in the table.

For a single spin, what is the theoretical probability of spinning green?

• 1

• 1/2

• 1/4

• 3/4

Tags

CCSS.7.SP.C.7A

Bradley spun the spinner 40 times and recorded his results in the table.

For two consecutive spins, what is the theoretical probability of spinning a red first AND a blue second?

• 2/4

• 1/16

• 1/2

• 2/16

Bradley spun the spinner 40 times and recorded his results in the table.

According to the table, what was the experimental probability of spinning blue? (In simplest/reduced form)

• 3/10

• 12

• 7/20

• 1/4

Tags

CCSS.7.SP.C.6

Bradley spun the spinner 40 times and recorded his results in the table.

According to the table, what color had an experimental probability closest to its theoretical probability? (Hint: The theoretical probability for each color is 1/4)

• White

• Blue

• Red

• Green

Bradley spun the spinner 40 times and recorded his results in the table.

If Bradley spins the spinner 200 times, how many times would you predict the spinner lands green? (Use the experimental probability for green to set up a proportion)

• 30

• 6/40

• 50

• 1/4

Tags

CCSS.7.SP.C.6

EXPLAIN in your own words what the difference is between theoretical probability and experimental probability.

• Experimental probability is the likelihood of something happening before it actually happens, while theoretical probability is the likelihood of something happening again after it has happened.

• Theoretical probability is the likelihood of something happening while experimental probability is the likelihood of something not happening.

• Theoretical probability is the likelihood of something happening before it actually happens, while experimental probability is the likelihood of something happening again after it has happened.

• There is no difference between them. Theoretical and experimental probabilities are always the same.