Research Article

Operational Efficiency Forecasting Model of an Existing Underground Mine Using Grey System Theory and Stochastic Diffusion Processes

Table 9

Min. and max. of .

Min.Max.

0.0052530.006127
0.0644090.088459
0.5603150.660519
0.2618590.347759
1.71E − 051.98E − 05
4.62E − 065.37E − 06