Use the following Normal Distribution table to calculate the area under the Normal Curve (Shaded …

Extrapolation
Use the following Normal Distribution table to calculate the
area under the Normal Curve (Shaded area in the Figure) when
Z=1.3& H=0.05; Assume that you do not have vales of the area
beyond z=1.2 in the table; i.e. you may need to use the
extrapolation. Check your calculated value and compare with the
values in the table [for z=1.3 & H=0.05]. Calculate your
percentage of error in the estimation.
How do I solve this problem using extrapolation?
Solution:
Here, we have to use the technique of extrapolation for finding
the probability for the z = 1.35 (Z=1.3& H = 0.05). Let us see
this discuss this question step by step given as below:
For using extrapolation we need the values for the row of z =
1.2
The values for the row z and columns H are given as below:
By using the extrapolation, we get

We get P(Z<1.35) = 0.4119 by using the extrapolation however
the probability by using the table is given as 0.4115. This means
there is a very small difference observed due extrapolation.