Quantitative analysis, Historical data show that customers

Quantitative analysis

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Reference no: EM132890439

Question

Historical data show that customers who download music from a popular Web service spend approximately ?$21 per? month, with a standard deviation of ?$3. Assume the spending follows the normal probability distribution. Find the probability that a customer will spend at least ?$17 per month. How much? (or more) do the top ?11% of customers? spend? What is the probability that a customer will spend at least ?$17 per? month?

Reference no: EM132890439

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