# How Do I Calculate the Upper or Lower Quartile?

To calculate the upper or lower quartile you can use a median data set. The lower quartile is the median of the lower half of the data set while the upper quartile is the median of the upper half of the data set. To see a worked example, go to: http://www.mathsteacher.com.au/year9/ch17_statistics/06_quartiles/quartiles.htm
Q&A Related to "How Do I Calculate the Upper or Lower Quartile"
 1. Arrange your number set from smallest to largest. Note the minimum - or smallest number in the set - and maximum. 2. Determine the median or the central number in the set. If there http://www.ehow.com/how_5135293_calculate-lower-qu...
 The upper quartile, for a set of ordinal observations, is a value such that a quarter of the observations have a greater value. Similarly, the lower quartile is a value such that http://wiki.answers.com/Q/What_is_the_upper_and_lo...
 if im not mistaken.you round it to the nearest decimal/figure. http://answers.yahoo.com/question/index?qid=201101...
 For Lower Quartile: Sort all observations in ascending order Comput... http://www.chacha.com/question/how-do-you-find-the...
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