# Table 3 Assumed mean and variance for random unit transportation cost and safety factor

Mean Variance
Random safety factor ${\stackrel{^}{S}}_{111}$ 0.22 0.11
${\stackrel{^}{S}}_{211}$ 0.19 0.1
${\stackrel{^}{S}}_{311}$ 0.4 0.2
${\stackrel{^}{S}}_{121}$ 0.5 0.14
${\stackrel{^}{S}}_{221}$ 0.6 0.2
${\stackrel{^}{S}}_{321}$ 0.24 0.3
S 131 0.7 0.23
${\stackrel{^}{S}}_{231}$ 0.8 0.15
${\stackrel{^}{S}}_{331}$ 0.2 0.27
${\stackrel{^}{S}}_{112}$ 0.3 0.37
${\stackrel{^}{S}}_{212}$ 0.6 0.19
${\stackrel{^}{S}}_{312}$ 0.5 0.16
${\stackrel{^}{S}}_{121}$ 0.8 0.25
${\stackrel{^}{S}}_{222}$ 0.6 0.2
${\stackrel{^}{S}}_{322}$ 0.55 0.3
${\stackrel{^}{S}}_{132}$ 0.61 0.32
${\stackrel{^}{S}}_{232}$ 0.45 0.26
${\stackrel{^}{S}}_{332}$ 0.4 0.27
Random unit transportation cost ${\stackrel{^}{C}}_{111}$ 19 2
${\stackrel{^}{C}}_{211}$ 19 1
${\stackrel{^}{C}}_{311}$ 17 0.4
${\stackrel{^}{C}}_{121}$ 22 0.75
${\stackrel{^}{C}}_{221}$ 22 0.9
${\stackrel{^}{C}}_{321}$ 11 0.5
C 131 21 0.23
${\stackrel{^}{C}}_{231}$ 27 1.56
${\stackrel{^}{C}}_{331}$ 2 2.7
${\stackrel{^}{C}}_{112}$ 22 1.56
${\stackrel{^}{C}}_{212}$ 15 0.65
${\stackrel{^}{C}}_{312}$ 11 1
${\stackrel{^}{C}}_{121}$ 22 2.25
${\stackrel{^}{C}}_{222}$ 30 1.2
${\stackrel{^}{C}}_{322}$ 26 1.3
${\stackrel{^}{C}}_{132}$ 25 3.5
${\stackrel{^}{C}}_{232}$ 22 2.5
${\stackrel{^}{C}}_{332}$ 17 1.25 