Question: Lead time is exactly 10 days long. Daily demand is normally distributed with a mean of 10 gallons per day and a standard deviation of
Lead time is exactly 10 days long. Daily demand is normally distributed with a mean of 10 gallons per day and a standard deviation of 2 gallons. What is the standard deviation of demand during lead time?
| 20 times 10 | ||
| 20 times 2 | ||
| 2 times the square root of 10 | ||
| 400 times the square root of 10 | ||
| 2 times the square root of 20 |
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