SOLUTION: what is the proportion of the total area under the normal curve within plus and minus 2 standard deviations?

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Question 296753: what is the proportion of the total area under the normal curve within plus and minus 2 standard deviations?

Answer by Edwin McCravy(20055)   (Show Source): You can put this solution on YOUR website!
what is the proportion of the total area under the normal curve within plus and minus 2 standard deviations?

 

 
There is 47.5% of the area between the short black line at z=-2 
and the y-axis, and there is also 47.5% of the area between
the y-axis and the short black line at z=2.  That's a total
of 95%.

Edwin



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