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Problem B. For this problem, assume that exactly 48% of the voting-age citizens of the US would answer "HC" if asked which of HC and RG they prefer for President in 2008. (The rest would answer "RG" or not give either answer.)
a. A pollster picks one voting-age citizen at random, and asks the question. What is the probability that the answer is "HC"?
b. A pollster picks 1000 voting-age citizens at random, and asks the question of each. What is the probability that exactly 480 of them answer "HC"? (Note: It may be way too hard to calculate the answer exactly. Just say exactly what calculation you would do. Also note: It may be necessary to approximate a little. Use common sense.)
c. What is the probability that exactly 481 of them will say "HC" ?