AP Statistics / Unit 1: Exploring One-Variable Data and Collecting Data
1.1 Introducing Statistics: What Can We Learn from Data?
Notes
Statistics is the science of collecting, organizing and interpreting data while accounting for variability. A statistical question expects answers that vary.
- Data come from individuals (people, objects) described by variables.
Practice
Which is a statistical question?
Answers vary from student to student.
Variability in data means:
Statistics is about understanding variation.
In a survey of 50 students, the individuals are:
Who or what the data describe.
Ready for more? Take the Unit 1 test.