Define binomial probability become even more accurate

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Question: Past experience indicates that 30% of all individuals entering a certain store decide to make a purchase. Using

(a) the binomial distribution and

(b) the normal approximation to the binomial, find that probability that 10 or more of the 30 individuals entering the store in a given hour will decide to make a purchase. Compare the results obtained using the two different approaches. Under what conditions will the normal approximation to this binomial probability become even more accurate?

Reference no: EM131641246

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