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Question
Why are quartiles useful when analysing data such as marks or incomes?
Options
They identify the average value
They divide data into equal halves only
They help compare groups and find outliers
They show the highest and lowest values only
MCQ
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Solution
They help compare groups and find outliers
Explanation:
Quartiles split data into four sections, letting us compare subgroups and identify outliers and data spread.
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