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 ...

While Excel is useful for many applications, it is an indispensable tool for those managing statistics. Two common terms used in statistics are Standard Deviation and ...

The extent to which products meet specifications needs to be systematically monitored in a production process. Product quality will typically be defined by two quantities: deviations from stated ...