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.
The median is the (11 + 1) Ã· 2 = 6 th value. The lower quartile is the (11 + 1) Ã· 4 = 3 rd value. The upper quartile is the 3 (11 + 1) Ã· 4 = 9 th value. Therefore, the median is 8, the lower quartile is 4, and the upper quartile is 11. 3, 4, 4, 6, 8, 8, 10, 10, 11, 12, 31. The interquartile range is the difference between the upper quartile and lower quartile.