Statistics › Section F · The normal distribution › Topic F.3
Choosing and checking a distribution
Every distribution in this course was built for a story. Real data do not announce their story - you read it from the context and the numbers, choose a model, then check that the model deserved your trust. This synthesis topic collects the whole family into one decision guide.
In this topic
- Which model?
- The story matcher
- Signature numbers
- Checking with pictures
- Worked example: the cafe's arrivals
- Worked example: four vignettes
- When the bell fails: skew and heavy tails
- Mixtures
- Position without shape: percentiles
- Models are approximations
- Common mistakes to avoid
- Key takeaways
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