Question: Look again at the table summarizing the Roper survey in Exercise 19. a) If we select a respondent at random, what's the probability we choose

Look again at the table summarizing the Roper survey in Exercise 19.

a) If we select a respondent at random, what's the probability we choose a person from the United States who has done post-graduate study?
b) Among the respondents who have done post-graduate study, what's the probability the person is from the United States?
c) What's the probability that a respondent from the United States has done post-graduate study?
d) What's the probability that a respondent from China has only a primary-level education?
e) What's the probability that a respondent with only a primary-level education is from China?

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