Measuring Spread with Range and IQR | CodeSignal Learn

General Skills

Measuring Spread with Range and IQR

You will measure how spread out a dataset is using two practical tools: the range and the interquartile range (IQR). Along the way, you will assemble five-number summaries, read box plots, flag outliers with the 1.5×IQR rule, and decide which spread measure tells the more honest story.

5 lessons

18 practices

Less than 2 hours

Describing Data Statistically

Course details

Calculating the Range

Finding Range From Tables

Find Range From Dot Plots

Explain What Range Misses

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