Week 4: Descriptive Statistics: Histograms

I have a very basic question.
Are frequency plots not histograms?
If yes, then why is it that, it is specifically named in Quantitative statistics and not Qualitative statistics?
If no, then what is the difference between the two?

Did you mean frequency polygons?

No, I am not talking about frequency polygon. I was under the impression that bar representation is called histogram. But in the chapter of describing qualitative data, they were called frequency plots and in chapter describing quantitative data, they are called histograms.
In both the cases, they are basically bar charts. Why then different names?

Bar charts are used for categorical data, whereas histograms/frequency plots are used for quantitative data.

I think you did not understand my question.

Physically both Histograms and Frequency plots are bar charts. Why is it that in case of qualitative data it is called frequency plot and in case of quantitative data histograms?

Yes, this is the basic difference between the two.
I was unable to find out why they were named so.

Yes, this is the basic difference between the two.
I was unable to find out why they were named so.

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Thanks! It does not matter :slight_smile:

If we know the reason, it will be easy to remember. That is why I asked.