1. Math CC7/8 – Jan. 23 Math Notebook: Things Needed Today (TNT):
Pencil/Math Notebook/Calculator
Math Notebook:
Topic: Pondering Possible & Probable
HW:WDYE p. 38 #8, 9, 26 & Tree Diagram Worksheet

2. What’s Happening Today?
HW Check Ins
Warm Up
Lesson 2.3 – Possible and Probable
Begin HW?

3. Show ALL work with Proper notation!!
Warm Up
Show ALL work with Proper notation!!
A bag contains 3 red marbles, 7 blue marbles, and 6 yellow marbles.
What is the probability of drawing a marble that is not red?
What is the probability of drawing a marble that is either red or blue?
P(not red) = 1 – P(red)
= /16
= 13/16
P(R or B) = P(Red) + P (Blue)
= 3/16 + 7/16
= 10/16
= 5/8

5. How can you decide a game is fair or not?
Question
How can you decide a game is fair or not?

6. Make sure you follow along!!!!!
Add to notes
I will make this tree diagram under the document camera and you (students) will copy the tree diagram in your math notebook!
Make sure you follow along!!!!!

7. There are 8 possible outcomes, and they are all equally likely.
we created to answer the following questions.
The sample space for tossing three coins is the list of ALL possible outcomes.
There are 8 possible outcomes, and they are all equally likely.

8. Show ALL work with Proper notation for #3 & #4 !!
P (3 coins match) = 2/8 or 1/4
P (exactly 2 coins match) = 6/8 or 3/4
No, this is not a fair game.
Tevy has more chances to score a point (2 coins match), so he is more likely to win.

9. You would expect exactly 2 coins to match ¾ of the time. ¾ of 24 = 18
P (exactly 2 coins match) = 18/24= 3/4 trials
Santo means that all 3 coins match sometimes and have a possible probability.
Tevy is saying it is not likely to be the case or to happen especially since the probability is less than ½.

10. Modeling Tree Diagrams
Take out Tree Diagrams Worksheet!
Work on this worksheet with your partner.
Finish for homework!

11. Homework: WDYE 2.3
pg. 38
#8, 9, 26 & worksheet