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.
First Quartile and Third Quartile. Definitions: 1  The lower half of a data set is the set of all values that are to the left of the median value when the data has been put into increasing order.  The upper half of a data set is the set of all values that are to the right of the median value when the data has been put into increasing order.