The interquartile mean is a measure of central tendency. While all values in a data set are used to calculate the mean, only the interquartile range -- the central portion of a data set -- is used to ...

Calculating the mean is one of many methods of finding an average. To calculate the mean, you add up all the numbers in the set, then divide the total by the number of numbers you added. The mean ...

Americans in different stages of life have significantly different net worths. Here is what you need to know about the mean and median net worth of people by age group. Net worth is one way to ...