Drills

Finding quartiles and the interquartile range of small data sets.

Author note — to cover (Higher)

Fluency — lower and upper quartiles of ordered lists of 7, 11 or 15 small integers (4 questions).
Interquartile range — the IQR of small integer data sets, including two sets with equal ranges but different IQRs (4 questions).
Order first — single-choice questions on lists that need ordering before quartering, and telling the interquartile range from the range (4 questions).

The test

—coming soon—

Where to go next

This mixed review uses the methods from these learning pages: