Upper And Lower Quartile Formula. The upper quartileQ3 is the medianof the upper half of the data set. To find the highest and lowest quartiles in a data set first find the median of the entire set of numbers.
It will put the complete list of numbers in an order. The lower quartile. The upper quartile is the value which is three quarters of the way into our data.
The other name for quartile is basically cuts.
Datasort half_list intlendata2 upper_quartile statmediandata-half_list lower_quartile statmediandatahalf_list printLower Quartile. Frac 3 4 of the number of values 1 or frac 3 111 4. So the lower quartile LQ is 4. Lower Quartile Q1 N1 1 4 Middle Quartile Q2 N1 2 4 Upper Quartile Q3 N1 3 4.
