Mathematics for IGCSE & O level - Statistical Diagrams (Section 5 - No. 36)
What does the interquartile range (IQR) measure?
The total range of the data.
The spread of the middle 50% of the data.
The average value in the dataset.
The most frequent value in the dataset.
Maelezo
The IQR measures the spread of the middle 50% of the data.