(See Solution) Suppose you know that 50% of registered voters support the current policy of the United States in Afghanistan. If that is the case, and X is
Question: Suppose you know that 50% of registered voters support the current policy of the United States in Afghanistan. If that is the case, and X is the number of registered voters you will have to interview before finding a supporter of this policy, the probability function for X is given by:
x 1 2 3 4 5 6 7 or more
p(x) .50 .25 .13 .06 .03 .02 .01
- What is the probability that you find a supporter of the Afghanistan policy in three or fewer tries?
- How likely is it that at least the first five people you interview do not like the current Afghanistan policy?
- What is the mean (expected value) number of voters you would have to interview to find a supporter of the policy? What is the variance?
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