Probability that a randomly select customer spent

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Average sales for an online textbook distributor were $74.67 per customer per purchase. Assume the sales are normally distributed. If the standard deviation of the amount spent on a textbooks is $9.49, find these probabilities for a randomly selected customer of the online textbook distributor

The probability that a randomly select customer spent more than 93.65 per purchase is what percent?

Reference no: EM132144141

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