The area between z=-2.14 and z= 1.44

Question

Sketch the area under the standard normal curve over the indicated interval and find the specified area. (Round your answer to four decimal places.)
The area between
z = −2.14
and z = 1.44 is

Answer 1

Obtain a z-score chart:

http://www.utdallas.edu/dept/abp/zscoretable.pdf

 

for z = -2.14, the area below is 0.0162

for z = 1.44, the area below is 0.9251

 

the area between is 0.9251 - 0.0162, or 0.9089, or 90.89%

Answer 2

Use this table to find each area and add the the results:

 

https://www.wyzant.com/resources/files/392716/normal_dist_table