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A political candidate estimates that 31.4% of the voters in his party favor his proposed tax...

A political candidate estimates that 31.4% of the voters in his party favor his proposed tax reform bill. a) In a sample of 9 people, what is the probability that atleast 2 of them favor his tax bill. b) If there are 450 people at a rally, find the probability that at least 130 favor his tax bill. (Use normal approximation to the binomial).

Math   Statistics-And-Probability   
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