Types of Graphs, p1
Here are the four parts of the AP Statistics course:
Part I: Displaying Data
Part II: Experimental Design
Part III: Probability/Random Behavior
Part IV: Statistical Inference
Letsseewhatyoucando:
Create a dot plot of the teacher age da
Normal Curve Day 2, p.1
Quick Questions
1. What is a normal curve? Draw a picture of a normal curve. What is a normal curve used for?
2. What is the mean and standard deviation of a standard normal curve.
3. Remind each other at your group about the Empir
Normal Curve, p.1
Two quick problems stemming from yesterday
1. What is the formula to find a z-score?
2. What is the purpose of finding a z-score?
3. The histogram below gives the ACT scores for a sample of students at a large high school.
15
20
25
30
35
z-scores & Density Curves, p 1
Max and Jerry are comparing their tests grades for Chapter 1. Max earned 65 out of 75, while Jerry
earned 78 out of 89. Who did better? Explain how you know.
The class average for Maxs class was 55 with a standard deviation
Measures of Spread & Outliers, p.1
Lets get you going
Answer the following in your groups:
Which is more resistant to extreme values: x or the median.
1.
8
When describing the center of skewed data, which value would be better to report: x or
the median?
Comparing Data, p.1
How long does it take Gunn AP Statistic students to get ready in the morning?
Describe the distribution of the time to get ready data in context(!).
Explain how to interpret each statistical measure.
a. x
b. Median
Graphical displays:
Histograms/Measure of Center, p.1
Look at the data about amount of change ($) students have on them. Create a histogram of the class
data.
Relative frequency histogram?
RelativeFrequencyHistogramsandOgives
Explain to your group what the following statemen
Youaretheownerofatshirtcompany.Youhave4employees,andyoupaythem
$5,$10,$15,$20.Findthe x ,median,std.deviation,andvariance.
Now
Everyonehasbeenworkinghard,andyoudecidetogiveeveryonea$3payraise.
Findthenewsalaries( x new ),alongwiththenew x ,median,std.devi
AP Statistics
Chapter 1 & 2 Review Sheet
1.
How do you decide if a distribution is normal? Explain.
2.
How do you decide if a distribution is normal, skewed left, or skewed right based on a normal probability plot?
3.
Describe a histogram, dot plot, stemp
Scatterplots & Correlation Coefficient, p.1
1.
What is a scatterplot? Draw an example.
2.
What is a scatterplot used for?
Last chapter we focused on _ - variable statistics. This chapter we are focusing on _ variable statistics.
What is the difference?
To
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AP Statistics
F irst Semester
Review
1. In the second game of the 1989 World Series between Oakland and
San Francisco (played 2 days before the northern California
earthquake postponed the series), ten players went hitless, eight
players had one hit apiec
Non-linear Regression, p.1
Today:NonLinearRegression
Letsreview
The table shows the growth of cell phone subscribers of a small company from 1990 to 1998.
Years
1991
1993
1994
1995
1996
1997
1998
Subscribers(thousands)
6
54
140
500
1000
4300
10000
1.
Find
Quick Review for Chapter 3 and 4 Test
How should I interpret:
r
How can I decide on the
strength of an
exponential model?
Explain.
How should I interpret:
r
2
How can I decide on the
fit of a regression line?
Explain.
How should I interpret:
Residual plot