1. Warm Up- CW Grade
Use the information in the table (from yesterday) to:
Make a Relative Frequency Table
Make a Relative Frequency Bar Graph
Make a Pie Chart

2. HW Questions
Textbook p # 2, 12, 22, 25, 26

3. Answer Key

4. Answer Key

5. EQ: How do we find percentages from contingency tables?
CH. 3 Day 2
AP Statistics
EQ: How do we find percentages from contingency tables?

6. Contingency Tables
Tables that show how the individuals are distributed along each variable
The frequency distribution for a two-way statistical classification.
Ex.

7. Types Distributions found in Contingency Table
Definition
Basically
Marginal distributions
a frequency distribution of one of the variables in a contingency table
Conditional distributions
shows the distribution of one variable for just the individuals who satisfy some condition on another variable

8. 203 118 212 711 122 167 528 673 285 706 2201 Titanic Data First Class
Second Class
Third Class
Fourth Class
Total
Alive
203
118
212
711
Dead
122
167
528
673
285
706
2201

9. What percent of the Titanic passengers were in First Class?
What percent of Titanic passengers died?
What percent of Third Class passengers survived?
What percent of people who died were from Fourth class?
Find the marginal distribution of class.

10. Work Force at a Corporation
Age/Ethnicity
White
Black
Hispanic
Total
24 and younger
2192
6496
2362
25-49
18200
46614
16726
50 and older
2690
4430
1710
Totals

11. What proportion of people ages 25-49 are black?
2. What proportion of white people are 24 or younger?
3. Compute the following percentages:
Hispanic people
Hispanic people given they are 50 or older
Hispanic people given they are 25-49
Hispanic people given they are <24

12. Summarizing/CW
Rules: Number your paper #1-10. Pick a spot to begin at, Ignore the answer at the top of that page, Instead look at the question in small print. Answer the Question and write it in as #1. Look for the Answer at the top of another page posted somewhere around the room. Go to that page. Your next question is the small print on that page. Repeat process  until you get back to the page you started at. You must go in order to receive credit- Turn in When finished.

13. Homework
P # 18, 19, 21, 26, 32