The instance in question was chosen at random assignment.
Given statement;
Participants should be selected by chance for an experimental or control group so each has an equal probability of being assigned to any of the groups.
The given case is done by Random assignment.
In Mathematical experiments, random assignment refers to the use of chance processes to ensure that each participant has an equal chance of being assigned to any particular group. Participants in studies are divided into several groups at random, such as the experimental group or the treatment group.
It is known as random assignment.
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