If z is a standard normal random variable,what is the area between z = -1.20 and z = 1.40?
1 Answer
.8041
Explanation:
All we need to do is find the corresponding areas for our z-scores in the table.
Using the table below (this variant of which is from [chegg.com](http://chegg.com)), we can see that
the area of the curve to the left of
and the area of the curve to the left of
To find the area between two z-scores, we subtract the smaller one from the larger one:
to come up with our answer.
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