The following contingency table provides a joint frequency distribution for the

Question

The following contingency table provides a joint frequency distribution for the popular votes cast in the 1984 presidential election by region and political party. Data are in thousands, rounded to the nearest thousand. Polátical Party Demo. Repub. Other Total Northeast 9046 11,336 101 20,483 Regon Midwest 10,511 14,761 169 25,441 South 10,998 17.699 136 28,833 West 7022 10,659 21417.895 Total 37.577 54455 620 92.652 Ri R2 a. A person who voted in the presidential election is selected at random. Compute the probability that the person selected voted Republican places) b. Suppose one of these voters is selected at random. Compute the probability that the person selected was a Democrat who is from the South. places) c. Suppose one of these voters is s?lected at random. Compute the probability that the person selected was a Democrat given that they are from the South. (round to 3 places) (round to 3 (round to 3 MacBook Air 19

Explanation / Answer

a) P(Republican) = 54455/92652 = 0.587

b) P(Democrat/South) = 10998/28833 = 0.3814

c) P(Democrat/South) = 10998/28833 = 0.3814

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