stats binomial probablity

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 The probability that a randomly selected person agrees with a certain governmental policy is 46%. Suppose five people are selected at random. Find the probability that at least one of the five selected people agrees with the policy

Jul 8th, 2015

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using binomial probability

P = nC^k *p^k * q^ (n-k)  

here

n=5

k=1

p=0.46               0r 46%

q= 1-0.46 = 0.56

P = 5C^1 *(0.46)^(1) * (0.56)^ (5-1)  

 probability that at least one of the five selected people agrees with the policy P = 0.22    or 22%


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Jul 8th, 2015

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