quick start expectations 1.fill in planner and hwrs hw: wdye p. 80-81 #1-6 2.get a signature on hwrs...

Quick Start Expectations1. Fill in planner and HWRS

HW: WDYE p. 80-81 #1-62. Get a signature on HWRS3. On desk: journal, calculator, HWRS, pencil, pen

4. Warm Up: A survey contains four questions with 2 possible

answer choices: “yes” and “no.” How many possible ways are there to answer the survey?

(Hint: Tree Diagram)

A survey contains four questions with 2 possible answer choices: “yes” and “no.” How many possible ways are there to answer the survey?

Question 2Question 1 Question 3

Shortcut? 2 x 2 x 2 x 2 =

Question 4Events:

Start

p.71

p.72

Miguel has divided the square into 3 equal rows. This is reasonable because it represents the probability of drawing a red or green marble from Bucket 1.

p.73

1/3

1/3

1/3

1/4 1/4 1/4 1/4

P (red) = 6/12 = 1/2P (blue) = 3/12 = 1/4

P (green) = 9/12 = 3/4

P (yellow) = 3/12 = 1/4

According to this area model what is in each bucket:Bucket 2

Buck

et 1

1. What is the area of each sectionif the rectangle is 100 square units?

2. What fraction of the whole square is each section?

3. How do the fractions in #2 compare to the probabilities of each section?

RY =10 sq. units, RB = 10 sq. units, GY = 40 sq. units, GB = 40 sq. units

1/10 1/10

4/104/10

The probabilities and the fractions of the areas are the same for each section!

p.74

1/10 1/10

4/10 4/10

R to G is 1:4

What are the ratios of R to G and Y to B?

Y to B is 1:1

Ratios of R to G is 1:4 and Y to B is 1:1

YES!

YES!

YES!

HW: WDYE p. 80-81 #1-6