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Mathematics, 17.11.2019 01:31 davisearron

The distribution of vitamin c amount in vitamin drops produced by a given factory is approximately normal, with a mean of 60.0 mg and a standard deviation of 0.5 mg.

about 80% of vitamin drops contain more than
a 59.36 mg of vitamin c.
b 59.58 mg of vitamin c.
c 60.42 mg of vitamin c.
d 60.64 mg of vitamin c.

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