gracieaa8 gracieaa8

16-05-2018
Mathematics

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what is the area of the shaded region between the two z-scores indicated in the diagram? z=-1.25 and z= 0.80

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CastleRook CastleRook

25-05-2018

Given that the z-scores are given by:
z=-1.25 and z=0.80
the area between the z-score will be:
P(z<0.80)-P(z<-1.25)
The value corresponding to z-score of :
z<0.80 is 0.7881
z<-1.25 is 0.1056
thus the area will be:
0.7881-0.1056
=0.6825

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