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Calculating the mean and standard deviation of distribution

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Reference no: EM132853132

A newly hired telemarketer is told he will probably make a sale on about 12% of his phone calls. The first week he called 200 people, but only made 9 sales. Assume this situation can be modelled by a binomial experiment. Should he suspect he was misled about the true success rate? Explain by calculating the mean and standard deviation of this distribution.

Reference no: EM132853132

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