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7/31/2019 Distribution Models
1/4
DISTRIBUTION MODELSA guide for reviewers, data analysts and interpreters onthe statistical properties of common distribution models
This guidance document is one of a series that outlines important basic statistical concepts and procedures that are usefulthese suggestions be followed where applicable, but is
open to other techniques provided that these alternatives are technically sound. Before a different methodology is adoptedit should be discussed with BC Environment.
Soil pH14131211109876543210
ofSamples
12
10
8
6
4
2
0
Percentage
April 2001
in contaminated sites studies. BC Environment recommends that
CONTAMINATED SITES STATISTICAL APPLICATIONS GUIDANCE DOCUMENT NO. 12-4
7/31/2019 Distribution Models
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Soil pH13121110987654321
ofSamples
1210
8
6
4
2
0
Percentage
13121110987654321
ofSamples
12
10
8
6
4
2
0
Percentage
13121110987654321
ofSamples
12
10
8
64
2
0
Percentage
3 st andard deviat ions+
9 9 %
2 st andard deviat ions+
9 5%
1 st andard deviat ion+
6 8 %
5 04 03 02 0100
ofSamples
12
10
8
6
4
2
0
Percentage
ug/g
ug/g
ug/g ug/g
ug/g
ug/g.
ug/g
As ( in ug/g)
0 ug/g
0 ug/g
ug/g
0 ug/g
. 1 2 - 4 :
7/31/2019 Distribution Models
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10 8 06 04 0200
ofSamples
12
10
8
6
4
2
0
Percentage
PCB (in ug/ g)
ug/g
ug/g
ug/g
ug/g
ug/g
ug/g
1 2 - 4 :
7/31/2019 Distribution Models
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ug/g
ug/g
ug/g
ug/g
ug/g
ug/g)
ug/g
ug/g
ug/g
ug/g
. 1 2 - 4 :