What is the probability that a randomly selected voter from

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Suppose that in a certain Texas town, 70% of the voters are Republicans, 20% of the voters are Democrats, and 10% of the voters are neither. Suppose that 85% of the Democrats voted for Obama and 15% of the Democrats voted for McCain. Suppose that 75% of the Republicans voted for McCain and 25% of the Republicans voted for Obama. Suppose that 60% of those who are neither a Democrat nor a Republican voted for Obama and 40% of those who are neither a Democrat or a Republican voted for McCain.

(a) What is the probability that a randomly selected voter from this town is a Republican and voted for McCain?

(b) Use the Law of Total Probability to calculate the probability that a randomly selected voter from this town voted for Obama.

(c) Use Bayes' Rule to calculate the probability that someone who voted for Obama is a Democrat.

Reference no: EM13605876

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