SOLUTION: how do i find the area under a normal curve to the right of z=2.04

 

Hi,

area under a normal curve to the right of z=2.04 = 1 - NORMSDIST(2.04)

                                                 = 1 - .9793 = .0207  Or 2.07%

For the normal distribution: 

one  standard deviation from the mean accounts for about 68.2% of the set 

two standard deviations from the mean account for about 95.4% 0r 2.3% on either end

and three standard deviations from the mean account for about 99.7%.

Important to Understand z -values as they relate to the Standard Normal curve:

Below:  z = 0, z = ± 1, z= ±2 , z= ±3 are plotted.  

Note: z = 0 (x value the mean) 50% of the area under the curve is to the left and %50 to the right