Upper Quartile Definition Statistics. The formula for calculating the upper quartile is q3 n 1. Upper quartile definition the data value in a data set that divides the complete data set in two parts such that the data below it covers 75 of the data set and the data above it covers the upper 25 of the data set is called the upper quartile.
It can also be thought of as the median of the upper half of the numbers. Upper quartile definition the data value in a data set that divides the complete data set in two parts such that the data below it covers 75 of the data set and the data above it covers the upper 25 of the data set is called the upper quartile. The upper quartile is the top 25 percent of numbers in the data set or the 75th percentile.
To calculate the upper quartile first arrange the numbers of the data set in ascending order.
Then determine how many numbers are in the set. The upper or third quartile denoted as q3 is the central point that lies between the median and the highest number of the distribution. Then determine how many numbers are in the set. The formula for calculating the upper quartile is q3 n 1.
