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Visual Summary: 
Finding the Area Under the Normal Curve


Before You Begin

Compute the Mean and Standard Deviation

 


ê

Convert X to Z

 

ê

ê


Z   Negative
 


Z   Positive

í  î

í  î

Area Below

Column 3

 

Area Above

Column 2 + .5

 

Area Below

Column 2  + .5

 

Area Above

Column 3

 

 


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