Question

Find the z-score such that the area under the standard normal curve to the left is 0.73?

Answer 1

0.61273

Explanation:

There are more than one type of standard normal table than you can refer to, but the one on the right below is the most straightforward.

Area of 0.73 corresponds to a position between 0.7291 and 0.7324 (in the middle section), each in turn corresponds to Z values (on the left column) of 0.61 and 0.62. With a little bit of interpolation calculation, you get Z = 0.61273, to 5 decimal places.

Table source:
http://www.dataanalysisclassroom.com/lesson50/