- random distribution
- random disturbance
- random dot stereogram
- random draft
- random drift
- random dynamical system
- random early detection
- random early detection, RED
- random effect
- random effect model
- random effects model
- random element
- random ellipsoid packing
- random emission
- random encoding
- random environment
- random environment process
- random equation
- random ergodic
- random ergodic theorem
- random error
- random event
- random excitation
- random experiment
- random experimental design