The annual per capita consumption of ice cream (in pounds) in the United States can be approximated by a normal distribution, as shown in the figure.
(a) What is the largest annual per capita consumption of ice cream that can be in the bottom 10% of consumptions?
(b) Between what two values does the middle 80% of the consumptions lie?
Annual U.S. per Capita Ice Cream Consumption

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μ # 17.9 lb 4 8 12 16 20 24 28 32 Consumption (in pounds)