Question 1131823
<font color="black" face="times" size="3">
You have the proper z score. Now use that value to find the area under the normal curve that is to the left of z = -1.00


You can use a table such as <a href = "http://users.stat.ufl.edu/~athienit/Tables/Ztable.pdf">this one</a> (the back of your textbook should have something similar)
Locate the row that starts with -1.0 and the column that has 0.00 at the top. At the intersection of this row and column is the value 0.1587


So, the area under the curve to the left of z = -1 is 0.1587 approximately
The area to the right of the z score is going to be roughly 1-0.1587 = 0.8413


The approximate final answer is <font color=red>0.8413</font> which is about a 84.13% chance
</font>