1. 2 nd Period 4 th Period  Catherine, Payton  Chase, Kimber  Ashleigh, Jessica  Alaina, Alden  Brittney, Josh V  Josh O, Edwin  Halle, Jacob  Ben S, Vernon  Jade, Ashley-Lynn  Clay, Leah  Destini, Ben R.  Kailey, Dylan  Abi, Emily  Thomas, Olivia  Mason, Hiatt  Carter, Rebekah  Jackson, Cameryn  Kamryn, Lauren  Kyle, Grace  Nicole, Kayla  Katleen, Ama’riah  Brittany, Martasia  Logan B, Julio  Kristyn, Emily  Mariah, Logan N  Alexis, Kursten  Carson, Imani  Shakur, Kayla  Blake, Bryan  Anthony, Bailey Introduction to Probability Activity Arrange yourself with this partner.

2. Tuesday, November 18 th 1)Solve: -5(4x + 1) = 23 2)Solve: x 2 – 6x – 40 = 0 3)Simplify: (5x 2 – 5x + 5) – (4x 2 – 10x) 4)If I flip a coin, what is the probability or chance that it will land on “tails”?

3. Probability Big on the exam!

4. In your words, what is probability?

5. Experimental Probability Two Types  Gather data based on observations  This is what you JUST did.

6. Theoretical Probability Two Types

7. Example: Calculate the theoretical probability of getting an even number when you roll a number cube. What would be the theoretical probability of rolling an odd number?

8. Example: What is the theoretical probability of rolling a multiple of 3 with a number cube.

9. Example: A jar contains 30 red marbles, 50 blue marbles, and 20 white marbles. Find each theoretical probability. a)P(red) b)P(blue) c)P(not white) d) P(red or blue)

10. Example: A class tossed coins and recorded 161 heads and 179 tails. What is the experimental probability of heads? Of tails?

11. Example: A class rolled a number cube and recorded their results. What is the experimental probability of rolling each number? Number123456 Occurrences424445444746 Probability

12. Homework Probability Worksheet