Discover what quartiles are in statistics, how to calculate them, and see examples to help you interpret data more ...

The interquartile range shows the range in values of the central 50% of the data. To find the interquartile range, subtract the value of the lower quartile Q1 from the value of the upper quartile ...

Finding the interquartile range A cumulative frequency diagram is also a good way to find the interquartile range, which is the difference between the upper quartile and lower quartile .