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asked in general by (700 points)  
  

2 Answers

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answered by (700 points)  
Probobality for data items within mean +-1 standard deviation is 0.68.

Probobality for data items within mean +-2 standard deviation is 0.95.

Probobality for data items within mean +-3 standard deviation is 0.997.
0 votes
answered by (820 points)  
Probobality mean for +-1 standard deviation is 0.68.
Probobality mean  for +-2 standard deviation is 0.95.
Probobality mean for +-3 standard deviation is 0.997.
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