randomized

/ˈrændəmaɪzd/
adjective
  1. Arranged or chosen in a way that has no pattern or plan; done by chance.
    • The participants were put into a randomized group to ensure fairness.
    • In a randomized trial, each patient has an equal chance of getting the new drug.
    • The teacher used a randomized list to call on students for answers.
Synonyms
verb
  1. Past tense of randomize: to arrange or select items in a way that has no pattern or order.
    • The computer program randomized the order of the questions on the test.
    • The scientist randomized the samples to avoid bias in the experiment.
    • She randomized the names in the hat to pick a winner fairly.