Quartile Deviation Explained 2025 | Econometrics

Описание: Hello All,
In this video, I am going to explain,
The Quartile deviation, also known as the semi-interquartile range, is a measure of statistical dispersion that shows the spread of the middle 50% of a dataset. It is calculated using the first quartile (Q1) and the third quartile (Q3).


Explanation
~Q1 (First Quartile): The value below which 25% of the data falls.
~Q3 (Third Quartile): The value below which 75% of the data falls.
~Interquartile Range (IQR): The range of the middle 50% of the data, calculated as:
IQR = Q3 - Q1

Quartile Deviation: Measures the spread of the middle 50% of the data, making it less sensitive to extreme values (outliers) than other dispersion measures like the standard deviation.

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