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Chapter 9: The Normal Probability Distribution
Figure 9-19:
Area and probability value for
P
(0
z
1.9)
Example 9-2:
Find the area under the standard normal curve between
= 0 and
= -2.1.
Solution:
This is equivalent to finding
P
(-2.1
0). Using the
Normal
Probability Distribution
workbook to solve, we get
the value of 0.4821.
Thus,
P
(-2.1
0) = 0.4821. The result is shown in
Figure 9-20
.
Figure 9-20:
Area and probability value for
P
(-2.1
z
0)
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