H-Spread
The difference 
, where 
and 
are Hinges. It is the same as the Interquartile Rangefor 
, 9, 13, ... points.
References
Tukey, J. W. Explanatory Data Analysis. Reading, MA: Addison-Wesley, p. 44, 1977.
- Parabola Involute
- Parabola Pedal Curve
- Parabolic Coordinates
- Parabolic Cyclide
- Parabolic Cylinder
- Parabolic Cylinder Function
- Parabolic Cylindrical Coordinates
- Parabolic Fixed Point
- Parabolic Geometry
- Parabolic Horn Cyclide
- Parabolic Partial Differential Equation
- Parabolic Point
- Parabolic Ring Cyclide
- Parabolic Rotation
- Parabolic Segment
- Parabolic Spindle Cyclide
- Parabolic Spiral
- Parabolic Umbilic Catastrophe
- Paraboloid
- Paraboloidal Coordinates
- Paraboloid Geodesic
- Paracompact Space
- Paracycle
- Paradox
- Paradromic Rings