1. Descriptive Statistics
Part II
Descriptive
Statistics

2. Part 2 – Descriptive Statistics
Chapters 2 through 4 cover Descriptive Statistics
After we collect the raw data (from a sample survey or a designed experiment), we can
Describe the data using visual methods (charts, etc.)
Describe the data using numeric methods (averages, etc.)
Different methods are appropriate for different types of data

3. Organizing and Summarizing Data
Chapter 2
Organizing and
Summarizing Data

4. Overview This is the first of three chapters on Descriptive Statistics
Our first task in Descriptive Statistics is to organize and summarize the data
Organizing qualitative data into tables
Organizing quantitative data using charts
We must be careful to not misrepresent the data
We should recognize misrepresented data

5. Chapter 2 Sections Sections in Chapter 2 Organizing Qualitative Data
Organizing Quantitative Data
Graphical Misrepresentations of Data
2.1
2.2
2.3