Mathematics for IGCSE & O level - Categorical, Numerical And Grouped Data (Section 2 - No. 9)
Which of these are ways to estimate the range?
Subtract the smallest value from the largest.
Take the midpoints of the largest and smallest classes.
Take the median of the lowest and highest classes.
You cannot estimate the range.
Explanation
The range can be estimated from the smallest and largest values.
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