Suppose a poll of 539 adults asked whether increasing oil, gas, and coal production or developing alternative energy sources such as wind and solar power should be given a higher

priority. Suppose 3 people are selected at random from this sample, and that the same person can be selected more than once. Complete parts a through d below. a) What is the probability that all three responded "Oil, gas, coal?" b) What is the probability that none responded "Equally Important"? c) What assumption must be made to compute these probabilities? d) Explain why that assumption is reasonable.

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