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Mathematics, 31.03.2021 19:10 ninaaforever

A company responsible for making gumballs found that their gumballs had an average diameter of 2.21 cm and a standard deviation of 0.01 cm.
A store is restocking their gumball machines. In order for the machine to work the gumballs must be
between 2.20 cm and 2.23 cm in diameter If the store uses the gumballs mentioned above what
percentage of the time will the machine work properly?

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