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This is also wrong. Gaussian curves are symmetric. Box plots do not have to be. In fact representing skew in a batch is one of the fundamental purposes of them.
by cjk2 2y ago
This is also wrong. Gaussian curves are symmetric. Box plots do not have to be. In fact representing skew in a batch is one of the fundamental purposes of them.
- crazygringo 2y agoBut representing skew is precisely to show how "off" from a Guassian it is. Because real data is never perfectly Guassian, or perfectly anything. But the idea of a box plot is that it's for data which is in theory Gaussian or a similar unimodal kind of bell-shaped curve. Then you can look at the box plot and see if it actually is -- are the two boxes roughly equal-sized? Are the lines a bit longer than the boxes but not insanely so?
- blueflow 2y agoYou model skew in Gaussian distributions by adding an exponential parameter.