Mathematics, 15.11.2019 08:31, kaiyerecampbell95

Average sales for an online textbook distributor were $65.39 per customer per purchase. assume the sales are normally distributed. if the standard deviation of the amount spent on textbooks is $9.22 , find these probabilities for a randomly selected customer of the online textbook distributor.

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Average sales for an online textbook distributor were $65.39 per customer per purchase. assume the s...