In statistics, quartiles are a method of breaking up a set of numbers into four equal parts. While this concept may seem simple, it actually requires some in-depth calculations to determine the exact ...

A control chart plots measured values along with upper and lower quality control limits. Values appearing outside these limits are unacceptable and could indicate a manufacturing problem. Although ...

Quartiles are the values that divide a data set into quarters: Put the values in order Divide the list into four equal parts The Quartiles are at the divisions The interquartile range shows the range ...