The interquartile range shows the size of the span between the middle half of the numbers in a set. The interquartile range is calculated by subtracting the number at the lower quartile from the number at the upper quart... More »

The interquartile range, or IQR, can be found after the median has been determined by dividing the data sets that are above and below the median in half, which divides the entire set into quarters, and then combining the... More »

To calculate the interquartile range in Microsoft Excel, first enter the values for which you want to calculate the interquartile range in one single column. To calculate the first quartile, select a blank cell, and ente... More »

The interquartile range, or IQR, can be found after the median has been determined by dividing the data sets that are above and below the median in half, which divides the entire set into quarters, and then combining the... More »

Calculate the median of a set by putting the numbers in order from least to greatest and finding the middle number, when there is an odd number of values in the set. When there is an even number of values, find the media... More »

In math, the "mode" is the number in a set of numbers that appears most often. For example, in the group {4, 4, 4, 5, 7, 9}, the mode is 4 because it appears the most times. More »

The mode of a set of numbers is the value which occurs the most often in the set. For example, the mode of {1, 2, 3, 2, 4} is 2, since it occurs twice. More »