Question

Given a standard normal distribution, find the area the curve between z=-1.97 and z=0.86.

Answer 1

We have to find the area between $z = -1.97$ and $z = 0.86$

$i.e. \hspace{1mm} P(-1.97<z<0.86) = 0.8051-0.0244 = 0.7807$