I'm sorry if this question had been asked before. How to determine the number of intervals when we're dealing with a dataset, where we have an observation that is too far away bigger than the mean? Refer. 1st Dataset of exercice related to skewness. the width of interval is 27.4; the lower observation is 48 and the upper one is 870.

Hi Gilles, Thanks for reaching out. In general we are looking for a representation that has between 5 and 20 intervals. To determine the skewness, I usually start with a histogram with many bins (e.g. 100-1000, depending on the size of the dataset). This gives a good feel about the frequency distribution of the dataset. Afterwards, I'd normally get the bins down to 20 and see if the general trend remains. Overall, I try to preserve the general trend while using as few bins as possible. Best, Iliya

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Gilles NGOMENI DOKOU

Last answered:

16 Jun 2020

Posted on:

07 Jun 2020

How to determine the number of intervals

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Posted on:

16 Jun 2020

How to determine the number of intervals

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