PART I
Where Do Data Come From?
Talking about data: Individuals and variables
Observational studies
Sample surveys
Census
Experiments
STATISTICS IN SUMMARY
CHECK THE BASICS
CHAPTER 1 EXERCISES
Describing Distributions with Numbers
Median and quartiles
The five-number summary and boxplots
Mean and standard deviation
Choosing numerical descriptions
STATISTICS IN SUMMARY
CHECK THE BASICS
CHAPTER 1 EXERCISES