The range = the difference between the highest and the lowest values in the data set.
For example if I had a data set like this: 10, 20, 30, 40, 50
50 is the highest number and 10 is the lowest number.
50-10= 40.
40= the range of the above data set.
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Iqr stands for inter quartile range and it is used to find the middle of the quartiles in a set of data. To find this, you find the lower quartile range and the upper quartile range, and divide them both together.
The least and greatest value of a set define the range of the set. To find the range get the difference between the two. (ie least = x and greatest = y and range = r ; y - x = r )
The data set whose inter-quartile range is the largest.
50
Range: the range of a data set is the difference between the largest and smallest number in your set of data. To find it, just subtract the smallest number from the largest number in your data set. That is now going to be your range.Example: 23, 40, 62, 90, 35, 89, 67. Subtract 90-23 and you should get 67. Therefore, 67 is your range.