Interquartile Range
Divide a set of data into two groups (high and low) of equal size at the Median if thereis an Even number of data points, or two groups consisting of points on either side of the Median itself plus the Median if there is an Odd number of data points. Findthe Medians of the low and high groups, denoting these first and third quartiles by 
and 
. The interquartile range is then defined by
See also H-Spread, Hinge, Median (Statistics)
- Euler Identity
- Euler Integral
- Euler-Jacobi Pseudoprime
- Euler-Lagrange Derivative
- Euler-Lagrange Differential Equation
- Euler L-Function
- Euler Line
- Euler-Lucas Pseudoprime
- Euler-Maclaurin Integration Formulas
- Euler-Mascheroni Constant
- Euler-Mascheroni Integrals
- Euler Measure
- Euler Number
- Euler Parameters
- Euler-Poincaré Characteristic
- Euler Polyhedral Formula
- Euler Polynomial
- Euler Polynomial Identity
- Euler Power Conjecture
- Euler Product
- Euler Pseudoprime
- Euler Quartic Conjecture
- Euler's 6n+1 Theorem
- Euler's Addition Theorem
- Euler's Circle