1. Theoretical and Experimental Probability
Unit 5A Probability
Theoretical and Experimental Probability

2. Lesson 2: Theoretical and Experimental Probability
Objective: Swbat find and compare theoretical and experimental probability. Do Now:

3. Lesson 2: Theoretical and Experimental Probability
Definitions Theoretical Probability is based on what should happen during an experiment. Experimental Probability is based on what actually occurs during an experiment.

4. Lesson 2: Theoretical and Experimental Probability
Activity: Coin Toss
Theoretical Probability:
Experimental Probability:
Groups will toss a coin 20 times and total the
heads and tails and write the probabilities as a
fraction and percent.
Compare the P(Heads) and P(Tails).

5. Lesson 2: Theoretical and Experimental Probability
Activity: Rolling dice and getting a sum of 9.
Theoretical Probability:
Experimental Probability:
Dice are rolled 20 times.
P(sum of 9)
Compare the probabilities.

6. Possible sums of a roll of dice1 2 3 4 5 6

7. Classwork
Guided Practice #1 – 3 Independent Practice #1 – 4 Problem Solving Practice #1 - 6

8. Closure
Question: What is the difference between theoretical and experimental probability? Exit Ticket Homework: Practice # 1 - 3

9. Exit Ticket
What is the theoretical probability of rolling a sum of 10 with dice?

10. Homework