Use Quartiles Calculator
Enter the data set as a list of real numbers x1, x2, x3 ... xN
separated by commas then press "Calculate Quartiles" and check the data entered. The outputs are:
"NaN" means "not a number" and when it is displayed for a data value, check that data value and make corrections before any calculations.
- the entered data (for checking)
- the sorted data and the number of data values (count)
- the quartiles and interquartile range .
More References and LinksQuartiles and box plots
Box Plots Calculator and Grapher
Statistics Calculators, Solvers and Graphers.