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.
1 The upper quartile (Q 3) is the median of the upper half of the data set. 2  The interquartile range (IQR) is the spread of the middle 50% of the data values.he interquartile range is a more useful measure of spread than range as it describes the middle 50% of the data values and thus, is less affected by outliers. 19 21 24 21 24 28 25 24 30. 19 21 21 24 24 24 25 28 30. 1  The median is the middle value of the data set.