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Data Analysis and Statistics for Geography, Environmental Science, and Engineering
book

Data Analysis and Statistics for Geography, Environmental Science, and Engineering

by Miguel F. Acevedo
December 2012
Beginner content levelBeginner
557 pages
19h 5m
English
CRC Press
Content preview from Data Analysis and Statistics for Geography, Environmental Science, and Engineering
54 Data Analysis and Statistics for Geography, Environmental Science, and Engineering
2.12.9 application: bayes’ theoreM
As an example of integrating several of the tools learned, consider Bayes’ rule for two events A
(contaminated water) and B (uncontaminated water), and a water quality test with C (test negative)
and D (test positive).
PAC
PAC
PC
PCAPA
PCAPAPCBPB
[]
[]
[]
[][]
[][] []
[]
|
|
||
==
+
Suppose we know P[A] = 0.2 and want to explore how P[A|C] varies as we change the probabilities
of false negative P[C|A] and false positive P[D|B]. The following script automates the calculation
and produces graphical output (Figure 2.30).
# pA =contamination p[A] ...
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Publisher Resources

ISBN: 9781439885017