A survey, issued by the U.S. Bureau of Justice Statistics and the Gallup Organization and published as Sourcebook of Criminal Justice Statistics, reported on deathpenalty attitudes of U.S. adults. The following table provides the results, by region.

Determine the following probabilities, and express your answers to three significant digits (three digits following the last leading zero).
a. If three adults are selected at random from the Northeast, what is the probability that all three are in favor of the death penalty?
b. If three adults are selected at random from the West, what is the probability that all three are in favor of the death penalty?

c. If two adults are selected at random from the Midwest, what is the probability that the first person is in favor of the death penalty and the second person is not?

d. In doing your calculations in parts (a)€“(c), are you assuming sampling with replacement or without replacement? Does it make a difference which of those two types of sampling is used? Explain your answers.

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In favor Not sure Not in favor Northeast 66% 30% 4% 24% Midwest 72% 4% South 66% 29% 5% West 73% 25% 2%