Element wt% | Samp. n | Min. xmin | Max. xmax | Average xa | Standard dev. s | Variation coeff. v | Mod mo | Median me | Skewness g | Excess e |
Cu Pb Zn *Fe3O4 S | 1369 55 330 353 904 | 0.20 0.50 0.50 20.00 20.00 | 16.60 4.20 13.11 92.55 48.69 | 2.23 1.08 2.60 42.91 33.10 | 2.33 0.57 2.14 14.88 6.59 | 104 32 82 35 20 | 0.75 0.74 1.04 35.00 36.80 | 1.29 0.97 1.98 40.08 33.69 | +1.90 +3.20 +2.08 +0.56 −0.02 | + 4.53 +15.52 +4.96 −0.35 −0.71 |