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View Full Version : Standard deviation


Ritesh_Agarwal
May 14, 2012, 02:18 PM
I have learned about Standard deviation and Normal Distribution that how this 2 helps out in data analysis...
Little bit confused in why normally distributed curve accmodate approx 68% of the total population when it is 1 sd from the mean... WHY 68% perc??

Please help really struggling to find out the answer...