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Suppose certain coins have weights that are normally distributed with a mean of 5.101g and a standard deviation of 0.052g. A vending machine is configured

Suppose certain coins have weights that are normally distributed with a mean of 5.101g and a standard deviation of 0.052g. A vending machine is configured to accept those coins with weights between 5.011 g and 5.191 g.

If 290 different coins are inserted into the vending machine, what is the expected number of rejected coins?

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