Exercise 45 shows the results of a Gallup Poll about
Exercise 45 shows the results of a Gallup Poll about U.S. economic conditions. Suppose we select three adults at random from this sample.
a) What is the probability that all three responded “Poor”?
b) What is the probability that none responded “Poor”?
c) What assumption did you make in computing these probabilities?
d) Explain why you think that assumption is reasonable.
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