Calculus and Above

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I do not know how to solve this question I get halfwy to the z values but after that I dont know wht to do ssume that the amount of corn flakes in a box is normally distributed with a mean of 18

oz and a standard deviation of 0.5

oz. Determine the percent of boxes that will contain between 17.30

oz and 18.10

oz of corn flakes.

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