Mathematics for IGCSE & O level - Categorical, Numerical And Grouped Data (Section 4 - No. 30)
Which statements are true regarding the interquartile range (IQR)?
It measures the spread of the middle 50% of the data.
It is influenced by outliers.
It is the difference between Q3 and Q1.
It's a measure of central tendency.
Explanation
The IQR measures the data's spread of the middle 50% and is not influenced by outliers.
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