Question

The percent of area associated with z = 1.4 is ____%

Answer 1

The answer is A. 38.49

Answer 2

Answer with explanation:

To find area associated with, z=1.4, we will take help of z table.

On the vertical axis, we will look at value at 1.4.

  $Z_{(1.4)}=0.9192$

At,Z=1.4,Area Occupied = 91.92%

In the normal curve,at

Z=50%,that is at the point,where

Mean =Median =Mode, in the middle of curve

Area Occupied =50%

Z-value at 50% = 0.5000=50%

So,percent of area associated with z = 1.4 is

        = Area on the right of mean

         = 91.92 % - 50%

          =41.92%

Option B