What is the expected number of rejected quarters

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quarters have weights that are normally distributed with a mean of 5.670 and a standard deviation of 0.062 g. A vending machine is configured to accept only those quarters with weights between 5.550 g and 5.790 g. If 280 different quarters are inserted into the vending machine, what is the expected number of rejected quarters?

Reference no: EM13140281

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