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The volumes of milk in cartons are normally distributed with a standard deviation of 12mL. Find...

The volumes of milk in cartons are normally distributed with a standard deviation of 12mL. Find the mean, to the nearest whole number, if 20% of these cartons contain less that 245mL of juice.

a- 255ml

b- 235ml

c-233ml

d- 294 ml

Math   Statistics-And-Probability   
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TOPIC:Normal distribution.

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