The online calculator computes the first lower second median and third upper quartile from a set of numerical data. Comparing range and interquartile range IQR Interquartile range review. Then divide your data set in half and find the median of both the lower and upper half.
The IQR is the difference between Q3 and Q1.
Interquartile range IQR Interquartile range IQR is the difference between the third Q3 and the first quartile Q1 in statistics. To find the interquartile range IQR first find the median middle value of the lower and upper half of the data. How do you find the interquartile range of a set of data. How to Find Interquartile Range The interquartile range IQR is the range in values from the first quartile Q 1 to the third quartile Q 3.