Random assignment is the use of a chance mechanism to assign experimental units to treatment groups. It tends to balance both known and unknown characteristics among the groups and permits probability-based comparisons of treatment effects. Random assignment is distinct from random selection of a sample from a population.
Random Assignment
See also
Completely Randomized Design, Experimental Design, Randomized Block Design, SampleExplore with Wolfram|Alpha
References
Montgomery, D. C. Design and Analysis of Experiments, 8th ed. Hoboken, NJ: Wiley, 2013.Cite this as:
Weisstein, Eric W. "Random Assignment." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/RandomAssignment.html