Final answer:
Sweepstakes is the type of promotion that requires consumers to rely on random chance.
Step-by-step explanation:
The type of promotion that requires consumers to rely on some measure of random chance is sweepstakes. In a sweepstakes promotion, consumers enter to win a prize by chance, often through a random drawing. The winner is selected randomly, so it is a game of luck rather than a guaranteed reward.
Learn more about Type of promotion that relies on random chance