1. Introduction to Statistics

2. What Is Statistics?
Statistics is the science of collecting, organizing, and interpreting numerical facts, which we call data
Examples of data:
High and low temperatures for this week in SF: San Francisco Weather Forecasts on Yahoo! Weather
The number of imported car sales and that of domestic car sales in this year

3. The Goal of Statistics
The goal of statistics is to gain understanding from data and then make decision using the gain.
So you know what to wear.
So the government can justify their tax policy for importing car.

4. The Rise of Statistics
The ideas and methods of statistics developed gradually as society grew interested in collecting and using data for a variety of applications.
The earliest origin is the desire of rulers to measure the value of taxable land in their domains.
Starting at 17th century, the importance of careful measurements of weights, distances, and other physical quantities grew.
By the 19th century, the agricultural and life sciences began to reply on data to answer fundamental questions.

5. Who Use Statistics?

6. Media Television News News Papers Polls Web/TV Commercials
KTVU Channel 2
News Papers
USA Today
Polls
Gallup Poll
Web/TV Commercials

7. Government U.S. Department of Labor – Bureau of Labor Statistics
U.S. Census Bureau
Department of Health &Human Services
Others

8. Other Organizations American Heart Association
American Lung Association
American Cancer Society
California Lottery

9. Reading Assignment
“To the student” of textbook