Table 4 Calculation results of coefficient of variation method.

From: Research on reasonable length of steeply dipping coal seam working face based on the fuzzy comprehensive evaluation method

Project

Average value

Standard deviation

Coefficient of variation

Weight

Labor costs

0.080

0.010

0.125

0.185

Transportation costs

0.110

0.010

0.091

0.135

Maintenance costs

0.220

0.026

0.120

0.178

Tunneling costs

0.233

0.031

0.131

0.194

Equipment costs

0.203

0.015

0.075

0.111

Relocation costs

0.150

0.020

0.133

0.197

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