Sixty eight percent of the sample
Suppose that 76% of Americans prefer Coke to Pepsi. A sample of 200 was taken. What is the probability that at least sixty eight percent of the sample prefers Coke to Pepsi?
A. 0.9960
B. 0.9925
C. 0.0075
D. 0.0040
E. Can not be determined.
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Assume that the number of customers who arrive at a water ice stan d follows the Poisson distribution with an average rate of 6.4 per 30 minutes.
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