Find the area under the standard normal curve between z 025

Find the area under the standard normal curve between z = 0.25 and z = 2.75.

Use standard normal distribution table to get the following:

The area under the standara normal curve when z=0.25 is 0.5987

The area under the standara normal curve when z=2.75 is 0.9970

The area under the standard normal curve between z = 0.25 and z = 2.75 is 0.9970-0.5987=0.3983