document.write( "Question 634827: r the standard normal curve, find the z-score that corresponds to the 90th percentile? \n" ); document.write( "
Algebra.Com's Answer #399907 by ewatrrr(24785)\"\" \"About 
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document.write( "Hi,
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document.write( "r the standard normal curve, find the z-score that corresponds to the 90th percentile?
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document.write( "Excel function NORMSINV(.90) = 1.2816\r
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document.write( "Important to Understand z -values as they relate to the Standard Normal curve:
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document.write( "Below:  z = 0, z = ± 1, z= ±2 , z= ±3 are plotted.  
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document.write( "Note: z = 0 (x value the mean) 50% of the area under the curve is to the left and 50%  to the right
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