Relationships · Distribution
Reading a Distribution
What can shape reveal before any test is run?
Page 1 of 7 · Big Picture
The big picture: Reading a Distribution
What can shape reveal before any test is run?
Why a policy analyst should care
Center and spread cannot reveal skewness, multimodality, or extreme values, so seeing the distribution should precede summaries and comparisons.
Follow the idea from the opening question to a practical decision. These are the conceptual moves this module will develop:
1 Question Look before testing
2 Explore Compare three shapes
3 Formalize Center, spread, and shape
4 Transfer Describe before choosing
Use the left and right arrow keys to move between pages.