Suppose that you ask three friends to go to the mall. Each one has a 0.80 chance of saying yes. What is the probability that all three friends will say they can go to the mall with you?

For all three friends to say yes, each friend must say yes. Assuming their answers are independent, multiply the probabilities: 0.80 × 0.80 × 0.80 = 0.512. So the probability is 0.512, choice C.

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