A warehouse distribute theT-shirt to 2 stores
Daily demend (pcs)
Store A
Mean 600
Standard deviation 400
Store B
Mean 400
Standard deviation 300
Of course, the daily demend of warehouse is 1000.
Then, what is the standard deviation of the warehouse?
How to calculate it?
Thanks!
Standard deviation 一問
2009-05-04 7:06 am
回答 (1)
2009-05-04 6:46 pm
✔ 最佳答案
Assuming that the daily demand for 2 stores are INDEPENDENT, then the standard deviation of daily demand for the warehouse = (300^2 +400^2)^1/2 = (90,000+160,000)^1/2=500
收錄日期: 2021-04-13 16:36:35
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