This will be your friend for these kind of problems
www.davidmlane.com/normal.html
copy and paste this URL to discover all the wonders of this topic.
click on "between" and enter 0 and 2.35 in the boxes shown
you should see 0.4906
do the others.
find the area under the normal curve that lies between z=0 and z=2.35?
find the area under the normal curve that lies between z=2.42 and z=1.31?
find the area under the normal curve that lies between z=1.54 and z=2.24?
1 answer