Find the area of the indicated region under the standard nor

Find the area of the indicated region under the standard normal curve. The area between z=1.2 and z=1.1 under the standard normal curve is .

Solution

z1 = lower z score =    -1.2      
z2 = upper z score =     1.1      
          
Using table/technology, the left tailed areas between these z scores is          
          
P(z < z1) =    0.1151      
P(z < z2) =    0.8643
          
Thus, the area between them, by subtracting these areas, is          
          
P(z1 < z < z2) =    0.7492 [ANSWER]