Name _
Period _
3.1 3.3 Practice
Scatterplots, Explanatory/Response Variables, Correlation, LeastSquares Regression Line
Question 1:
The figure below plots the average brain weight in grams versus average body weight in kilograms for 96
species of animal
Name _
Period _
Chapter 2 Multiple Choice / Free Response Review
SECTION I: MULTIPLE CHOICE: Select the best answer for each question.
1. Many professional schools require applicants to take a
standardized test. Suppose that 1000 students take such a test
9/13/2013
Friday, 9/13/2013
1. Warmup (turn into HW folders)
2. 2.2 Assessing Normality
3. Begin Ch. 2 Review
The height of men has the distribution
(69, 2.5). Lets say that a totalitarian
government wants to study the genetic
profile of the lowest 1% and
Using the TI84
To find the fivenumber summary: press
FiveNumber Summary
The fivenumber summary
of a data set consists of the
smallest observation, the
first quartile, the median, the
third quartile, and the largest
observation, written in order
from s
Name _
Period _
Chapter 2 Multiple Choice / Free Response Review
SECTION I: MULTIPLE CHOICE: Select the best answer for each question.
1. Many professional schools require applicants to take a
standardized test. Suppose that 1000 students take such a test
AP Statistics, Chapter 1 Problems
1.23 Gender Effects in Voting
Categorical: gender, voted for Dem/Rep
Quantitative: age, household income
1.24
(a) For makes of cars, we could use a bar graph or a pie chart. For the age of cars, we could use a dotplot or
9/9/2013
Uhh what?
Mon, 9/9
1. Warmup
2. Review
Quiz
3. 2.1 Notes
Warmup: This is a chart of Americans receiving
food stamps.There are 47 million Americans receiving
food stamps this month. The smallest number on the
left shows 26 million back in 10/06. W
Chapter 2 Normal Distributions
2.2 Assessing Normality
Goal:
Use a variety of techniques, including a normal probability plot, to assess the normality of a
distribution
Because using the standard normal distribution is so convenient, we need to apply proc
9/24/2013
Tuesday, 9/24/2013
1.
2.
3.
Warmup
Warmup
3.3 LeastSquares Regression
Community Service opportunity
Quiz Thursday includes up to todays stuff.
A researcher asks a group of individuals
(a) how much each spent on his car and
(b) how satisfied eac
8/21/2013
Wednesday, 8/21
1. Warmup
2. Notes: Ch 1 Exploring
Data: Variables
Warmup:
Based solely on the title of
this book, what do you
think the authors message
is? How can one lie with
statistics?
Last night, I googled research
study and found
 Obese
Chapter 1 Exploring Data
1.1 Displaying Distributions with Numbers Shape, Frequency, Time Plots
Questions: How can we further describe the shape of a distribution?
How do we describe the relative poistion of an individual within a distribution?
More About
8/29/2013
Thursday, 8/29/2013
1.
2.
3.
Questions of the Day
Warmup
1.2 Notes standard deviation, choosing
measures of center and spread
Review 1.1 Quiz (1.2 Quiz moved to Tuesday)
Warmup: These are the percent of failed weekly tests of the
waters at the 3
AP Statistics, 2.1 Exercises (p. 90)
2.11 Estimating Standard Deviations
We look for the inflection points on each curve to determine the standard deviation.
For the taller curve, it looks like the standard deviation is approximately 0.2
For the shorter c
AP Statistics, Chapter 1.2 Problems
1.31 Joey's Quiz Grades
(a) 86 84 91 75 88 80 74 87 76 96 82 90 98 93
(b)
mean well down below 85.
This displays the nonresistance property of the mean. The zero result is an outlier that pulled the
(c) The best plot
9/11/2013
Wednesday, 9/11/2013
1.
2.
3.
4.
Warmup
Review HW
Finish Sec 2.2
Review Ch. 1 Test
The standardized height for young women
are approximately normal with = 64.5
inches and = 2.5 inches. Calculate:
(a) The percentage of women between 64
and 68 inc
9/23/2013
Monday, 9/23/2013
1. Warmup
2. Review HW
3. 3.2 Correlation
Warmup: Describe and compare the
scatterplots below.
Goals
Define the correlation , describe
what it measures, and how we use
it to interpret bivariate data
Our eyes are not reliable
8/23/2013
Stats Students Guesses of my Age
20
# of Stuents
1. Warmup
2. Review
HW
3. Section 1.1
(p. 2531)
Warmup
15
10
5
0
Age Guessed
Warmup: Describe this distribution
using SOCS.
Warmup
Stats Students Guesses of my
Age
# of Stuents
Center:
About 34
S
Chapter 2 Inequalities and Proof
Page 23
23 Problem Solving Using Inequalities
Objectives:
How do we solve word problems using inequalities in one variable?
If:
x is at least a
x is no less than a
x is between a and b
x is at most b
x is no greater tha
Chapter 3 Examining Relationships
3.3 LeastSquares Regression: The LeastSquares Regression Line
Goals:
Explain what is meant by regression
Given a regression equation, interpret the meaning of the numerical values of the slope and
intercept of the regre
Name _
Period _
Chapter 1 Review Questions
SECTION I: MULTIPLE CHOICE: Select the best answer for each question.
1. You record the age, marital status, and earned income of a
sample of 1463 women. The number and type of variables you
have recorded is
(a)
Chapter 3 Examining Relationships
3.1 Interpreting Scatterplots
Goals:
Analyze overall patterns, deviations, and relationships within a scatterplot
Interpreting Scatterplots

In any graph of data, look for the _ and for striking _ from
that pattern
You c
Chapter 3 Examining Relationships
3.1 Explanatory and Response Variables, Constructing Scatterplots
Goals:
Understand the differences between explanatory and response variables
Given a set of bivariate data, construct a scatterplot
Bivariate Data
Most sta
8/27/2013
1.
2.
3.
4.
Tuesday, 8/27/2013
Warmup
Review and turn in HW
Quiz on 1.1
Start 1.2: Measures of Center
11 6 8
12 1 4 8
13 3 3
14 2 6
15
16
Warmup: Which is true?
17
A. Since there are 7 stems, the median must
be in the 4th smallest stem and be
be
Name _
Period _
Chapter 2 Multiple Choice / Free Response Review
SECTION I: MULTIPLE CHOICE: Select the best answer for each question.
1. Many professional schools require applicants to take a
standardized test. Suppose that 1000 students take such a test
3.38 Gas Consumption
:
( )
(
)
(
)(
)
3.40 Acid Rain
pH = 5.43 (0.0053 weeks)
(a) Graph below right. Yours doesn't have to look as
pretty. Make sure the graph doesn't have an
intercept because the study started at Week 1.
The association is negative. The
AP Statistics 3.9, 3.10, 3.12, 3.15, 3.17
3.9 More on the Endangered Manatee
(a) The direction goes from lowerleft to upper right. The variables are positively associated.
(b) It is moderately linear.
(c) The relationship is fairly strong. We can predict
9/25/2013
Wednesday, 9/25/2013
1.
2.
3.
Warmup (turn in sheets)
Review Ch 2 Test
3.1 to 3.3 Review
Quiz TOMORROW
Which of the following statements about the
correlation are true?
1. When = 0, there is no relationship
between the variables.
2. When = 0.2,
9/20/2013
Warmup: Make 23 observations
about the scatterplot below
1.
2.
3.
4.
Warmup
Review #3.1 to 3.7
3.1 Interpreting Scatterplots
3.2 Correlation
Interpreting Scatterplots
 In any graph of data, look for the
overall pattern and for striking
deviat
AP Statistics, 2.1 Problems
2.1 Density Curves
(a) Symmetric but different than 2.5(a)
(b) Density curve strongly skewed left
2.2 A Uniform Distribution
(a) The total area under the density curve is equal to 1 because the definition of the density curve r