← Back to the chapter

Sections

Statistics

Pick a section. You read the idea first, then answer questions on it.

1. One number hides how spread out the data is1 ideaRead

2. The simplest measure of spread: the range1 ideaRead

3. Why deviations from the mean can’t just be averaged1 ideaRead

4. Mean deviation about the mean2 ideasRead

5. Mean deviation about the median1 ideaRead

6. Variance: squaring instead of taking the absolute value1 ideaRead

7. Standard deviation: back to the data’s own units2 ideasRead

8. A shortcut formula for variance2 ideasRead

9. Variance from a frequency table1 ideaRead

10. Comparing consistency: the coefficient of variation2 ideasRead

11. Every measure, one question1 ideaRead

12. Two traps this chapter sets2 ideasRead

13. Practice set3 ideasRead

14. Chapter-end problems1 ideaRead

15. JEE-application problems1 ideaRead