Journal of Applied Mathematics / 2014 / Article / Tab 3

Research Article

Evaluation of Underground Zinc Mine Investment Based on Fuzzy-Interval Grey System Theory and Geometric Brownian Motion

Table 3

Relative and absolute error of the model.

Year Original values ($/t) Simulated values ($/t) Whitenization = 0.5Relative errorAbsolute errorRelative error (%)
OriginalSimulated

2009 1385, 1931 1385, 1931 16581658000
2010 2016, 2304 1941, 2466 21602204−4444−2.03
2011 2057, 2333 1792, 2404 219520989797+4.42
2012 1895, 2005 1647, 2346 19501997−4747−2.41
2013 1849, 1971 1505, 2293 191018991111+0.57