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

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