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OpenStudy (anonymous):
Can someone help me with this question? It's on standard deviation.
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OpenStudy (anonymous):
Betty’s Bite-Size Candies are packaged in bags. The number of candies per bag is normally distributed, with a mean of 50 candies and a standard deviation of 3. At a quality control checkpoint, a sample of bags is checked, and 12 bags contain fewer than 47 candies. How many bags were probably taken as samples?
ganeshie8 (ganeshie8):
familiar with 68-95-99.7 rule ?
ganeshie8 (ganeshie8):
|dw:1397657128449:dw|
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