Sixth Volume of the Public Papers of President Barack Obama Available. The sixth volume of the Public Papers of President Barack Obama is now available. These volumes are produced right here at the Office of the Federal Register (OFR) by our...
Upper Quartile Definition and Formula. The upper quartile is the median of the upper half of a data set. This is located by dividing the data set with the median and then dividing the upper half that remains with the median again, this median of the upper half being the upper quartile.
Quartile. One of the four divisions of observations which have been grouped into four equal-sized sets based on their statistical rank. The quartile including the top statistically ranked members is called the first quartile and denoted. The other quartiles are similarly denoted, , and. For data points with of the form (for, 1, ...), the hinges are identical to the first and third quartiles. The following table summarizes a number of common methods for computing the position of the first and third quartiles from a sample size (P. Stikker, pers.