Interquartile Mean
The interquartile mean (IQM) (or midmean) is a statistical measure of central tendency, much like the mean (in more popular terms called the average), the median, and the mode.
The IQM is a truncated mean and so is very similar to the scoring method used in sports that are evaluated by a panel of judges: discard the lowest and the highest scores; calculate the mean value of the remaining scores.
Read more about Interquartile Mean: Calculation, Comparison With Mean and Median