Quartile Calculator
Calculate quartiles (Q0-Q4) and interquartile range
Q0 (minimum)
2
Q1 (25%)
3.75
Q2 (median)
5.5
Q3 (75%)
7.25
Q4 (maximum)
9
Interquartile range
3.5
Quartile definition: R-7 linear interpolation at (nβ1)p
Population and sample variance are distinct. Quartiles use R-7 linear interpolation at position (nβ1)p.