Suppose certain coins have weights that are normally distributed with a mean of 5.348 g5.348 g
and a standard deviation of 0.072 g0.072 g.
A vending machine is configured to accept those coins with weights between 5.2385.238
g and 5.4585.458

a. If 270270
different coins are inserted into the vending​ machine, what is the expected number of rejected​ coins?

The expected number of rejected coins is nothing.
​(Round to the nearest​ integer.)