Strange Variable Distributions

When you look at the distributions of your variables (often through graphs of the data like the histogram in Chapter 7), you may see that some of your variables are oddly distributed. This, in turn, may need extra or different statistical analyses.
Say that you are a banking customer relationship manager who wants to analyze customer satisfaction feedback made at the time of a transaction, and that the customers are only asked one question about service with replies on a scale: “Very satisfied,” “Satisfied,” “OK with our service,” “A bit unsatisfied,” “Very unsatisfied.”
If you take an exploratory peek at the distribution of the data you may find that it has a very bimodal distribution like that in Chapter 7: ...

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