Can you explain what the Interquartile Range (IQR) is?
Sure! The Interquartile Range (IQR) is a measure of statistical dispersion, which is the range between the first quartile (Q1) and the third quartile (Q3) in a data set.
How do you calculate the IQR?
To calculate the IQR, you first find Q1 and Q3. Then, subtract Q1 from Q3: IQR = Q3 - Q1.
What does the IQR tell us about a data set?
The IQR indicates the middle 50% of the data, helping to identify the spread and detect outliers.
Can you give an example of how to find the IQR?
Of course! If you have the data set: 1, 3, 5, 7, 9, the Q1 is 3, Q3 is 7, so IQR = 7 - 3 = 4.
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