First And Third Quartile Calculator. Calculate the third quartile by determining the median from the upper half. Quartile formula for grouped data.
Use the Reset button to enter new values. Splits off the lowest 25 of data from the highest 75. It also finds median minimum maximum and interquartile range.
Enter data separated by commas or spaces.
There are several different methods for calculating quartiles. With this method the first quartile is the median of the numbers below the median and the third quartile is the median of the numbers above the median. This means that about 25 of the numbers in the data set lie below Q1 and about 75 lie above Q1. Of the given data set.
