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The time it takes to fill an order at an online retailer is normally distributed 2...

The time it takes to fill an order at an online retailer is normally distributed 2 hours with a standard deviation of 0.5 hours. The time it takes to package an order for the same retailer is normally distributed 0.3 hours with a standard deviation of .1 hours.

Find the probability that filling and packaging the order takes more than 2 hours

Math   Statistics-And-Probability   
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