histograms

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4 Terms

1
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histogram

visual for numerical variables

2
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shapes (modality)

1 hump: unimodal

2 humps: bimodal

3 humps: multimodal

3
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skew

in the middle: symmetirc

long tail on the right: skewed to the right

long tail on the left: skewed to the left

4
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mean

the longer the tail, the more off center it is (if the tail is long on the right, the mean line will be off to the right instead of in the middle)