Upper Quartile Range. The upper quartile is the top 25 percent of numbers in the data set or the 75th percentile. The formula for calculating the upper quartile is q3 n 1.
Then determine how many numbers are in the set. The upper quartile q 3 is the median of the upper half of the data. Upper quartile definition and formula.
How to calculate quartiles.
The upper quartile q 3 is the median of the upper half of the data. To calculate the upper quartile first arrange the numbers of the data set in ascending order. So the upper quartile uq is 18. The upper quartile is the top 25 percent of numbers in the data set or the 75th percentile.
