The Chemical Analysis of Argonne Premium Coal Samples
Edited by Curtis A. Palmer
U.S. Geological Survey Bulletin 2144
Appendix 2. Statistical parameters for the data in appendix 1 --continued.
| Cr HP | Cr All | Co HP | Co All | Ni HP | Ni All | Cu HP | Cu All | Zn HP | Zn All | |
| UF PC-1 | ||||||||||
| n | 12 | 21 | 9 | 15 | 12 | 21 | 9 | 18 | 12 | 18 |
| Mean (ppm) | 22 | 23 | 5.2 | 4.8 | 15 | 17 | 18.9 | 18 | 20 | 24 |
| Standard Dev (ppm) | 2.6 | 5.2 | .22 | .71 | 2.3 | 5.0 | .98 | 1.4 | 1.8 | 7.0 |
| Rel Std Dev (%) | 11.9 | 22.8 | 4.25 | 14.7 | 15.5 | 28.8 | 5.18 | 7.37 | 9.10 | 29.0 |
| Geometric Mean (ppm) | 22 | 22 | 5.2 | 4.8 | 15 | 17 | 18.9 | 18 | 20 | 23 |
| Dev of Means (%) | .62 | 2.20 | .08 | 1.22 | 1.04 | 3.62 | .12 | .26 | .36 | 3.63 |
| Kurtosis | -.530 | 3.11 | 3.43 | 2.20 | 4.65 | .00992 | 1.49 | -.783 | 2.36 | -.238 |
| Skewness | .930 | 1.53 | -1.76 | -1.70 | 1.36 | 1.03 | -.553 | -.401 | 1.30 | .997 |
| WY PC-2 | ||||||||||
| n | 11 | 20 | 9 | 12 | 12 | 18 | 9 | 18 | 12 | 15 |
| Mean (ppm) | 6.5 | 6 | 1.65 | 1.6 | 4.7 | 5.3 | 13.0 | 12.7 | 11.0 | 14 |
| Standard Dev (ppm) | .69 | 1.3 | .088 | .21 | .50 | 1.4 | .79 | 3.3 | .96 | 6.2 |
| Rel Std Dev (%) | 10.6 | 21.0 | 5.32 | 13.7 | 10.8 | 25.9 | 6.08 | 26.2 | 8.73 | 44.8 |
| Geometric Mean (ppm) | 6.5 | 6 | 1.65 | 1.5 | 4.6 | 5.2 | 12.9 | 12.2 | 10.9 | 13 |
| Dev of Means (%) | .47 | 2.42 | .13 | 1.02 | .56 | 2.70 | .16 | 4.39 | .34 | 7.21 |
| Kurtosis | 3.52 | 1.55 | .326 | 3.71 | -.106 | 2.58 | -1.35 | 1.22 | .343 | 2.08 |
| Skewness | 1.80 | -.209 | .112 | -1.71 | -.583 | 1.69 | -.001 | -.836 | .593 | 1.83 |
| IL PC-3 | ||||||||||
| nn | 12 | 21 | 9 | 12 | 11 | 21 | 9 | 18 | 9 | 18 |
| Mean (ppm) | 36 | 38 | 4.4 | 4.2 | 19 | 24 | 10.1 | 11 | 200 | 190 |
| Standard Dev (ppm) | 5.2 | 7.7 | .18 | .37 | 2.5 | 6.7 | .78 | 1.9 | 25 | 60 |
| Rel Std Dev (%) | 14.6 | 19.9 | 4.35 | 8.87 | 12.9 | 28.2 | 7.74 | 17.7 | 12.3 | 32.3 |
| Geometric Mean (ppm) | 35 | 38 | 4.4 | 4.2 | 19 | 23 | 10.1 | 11 | 200 | 180 |
| Dev of Means (%) | .96 | 1.76 | .08 | .39 | .78 | 3.67 | .27 | 1.36 | .68 | 5.37 |
| Kurtosis | -1.38 | .582 | -.636 | 1.25 | 2.74 | -.823 | -.211 | .569 | .393 | -.0399 |
| Skewness | .584 | .992 | .867 | -1.12 | .172 | .690 | -.411 | 1.19 | .486 | .320 |
| PITT PC-4 | ||||||||||
| n | 12 | 21 | 9 | 12 | 11 | 20 | 9 | 18 | 11 | 18 |
| Mean (ppm) | 16 | 16 | 2.6 | 2.6 | 9.2 | 11 | 5.8 | 7 | 8.3 | 13 |
| Standard Dev (ppm) | 1.6 | 4.7 | .10 | .15 | .89 | 2.5 | .40 | 1.6 | .83 | 7.3 |
| Rel Std Dev (%) | 10.3 | 28.9 | 4.03 | 5.95 | 9.66 | 22.8 | 6.95 | 24.2 | 9.91 | 56.4 |
| Geometric Mean (ppm) | 16 | 16 | 2.6 | 2.6 | 9.2 | 11 | 5.8 | 6 | 8.3 | 11 |
| Dev of Means (%) | .49 | 4.78 | .07 | .17 | .40 | 2.34 | .21 | 2.45 | .41 | 12.3 |
| Kurtosis | -.529 | .905 | .280 | -.222 | 2.16 | -.170 | -1.77 | .548 | 4.78 | 1.87 |
| Skewness | .248 | .00908 | -1.12 | -.499 | 1.30 | .826 | .221 | 1.33 | 1.92 | 1.63 |
| POC PC-5 | ||||||||||
| n | 12 | 21 | 9 | 12 | 12 | 20 | 9 | 18 | 12 | 15 |
| Mean (ppm) | 10 | 10 | 3.9 | 3.6 | 7.6 | 8 | 14 | 16 | 5 | 7 |
| Standard Dev (ppm) | 1.4 | 3.2 | .13 | .65 | .79 | 1.8 | 1.9 | 4.1 | 1.0 | 3.9 |
| Rel Std Dev (%) | 14.1 | 32.3 | 3.20 | 18.1 | 10.4 | 21.5 | 14.1 | 25.4 | 19.8 | 56.5 |
| Geometric Mean (ppm) | 10 | 10 | 3.9 | 3.5 | 7.6 | 8 | 13 | 16 | 5 | 6 |
| Dev of Means (%) | .85 | 5.38 | .05 | 1.83 | .48 | 2.07 | .85 | 2.76 | 1.75 | 12.29 |
| Kurtosis | -.408 | .782 | -1.45 | .553 | .160 | -.251 | -1.75 | 1.84 | .562 | .597 |
| Skewness | 1.06 | .592 | .058 | -1.43 | .611 | .873 | .725 | 1.29 | .725 | 1.48 |
| UT PC-6 | ||||||||||
| n | 8 | 11 | 8 | 11 | 7 | 13 | 5 | 11 | 8 | 8 |
| Mean (ppm) | 5.2 | 5.1 | .93 | .9 | 3.4 | 3.9 | 4.1 | 5 | 6 | 6 |
| Standard Dev (ppm) | .31 | .48 | .072 | .15 | .17 | .67 | .21 | 2.2 | 1.1 | 1.1 |
| Rel Std Dev (%) | 6.04 | 9.44 | 7.74 | 17.5 | 4.99 | 16.92 | 5.11 | 45.9 | 18.8 | 19.2 |
| Geometric Mean (ppm) | 5.1 | 5.0 | .93 | .8 | 3.4 | 3.9 | 4.1 | 4 | 6 | 6 |
| Dev of Means (%) | .16 | .45 | .27 | 1.55 | .11 | 1.25 | .11 | 9.49 | 1.53 | 1.53 |
| Kurtosis | .874 | 3.11 | -1.18 | -1.03 | -.638 | -.704 | -1.96 | -.927 | -1.51 | -1.51 |
| Skewness | -.293 | -1.54 | -.645 | -.705 | .169 | .872 | -.236 | .829 | .401 | .401 |
| WV PC-7 | ||||||||||
| n | 12 | 15 | 9 | 12 | 12 | 18 | 9 | 15 | 12 | 15 |
| Mean (ppm) | 40 | 40 | 7.8 | 7.4 | 16 | 17 | 21 | 22 | 12 | 12 |
| Standard Dev (ppm) | 3.8 | 3.7 | .34 | .79 | 1.2 | 2.2 | 2.1 | 5.4 | 1.1 | 1.5 |
| Rel Std Dev (%) | 9.51 | 9.34 | 4.33 | 10.7 | 7.43 | 12.99 | 10.0 | 24.7 | 9.17 | 12.52 |
| Geometric Mean (ppm) | 40 | 40 | 7.8 | 7.4 | 16 | 17 | 21 | 21 | 12 | 12 |
| Dev of Means (%) | .41 | .40 | .08 | .57 | .26 | .75 | .44 | 2.88 | .38 | .75 |
| Kurtosis | -.935 | -.915 | .0131 | .765 | .325 | 1.46 | -.0445 | -.300 | -1.01 | -.5667 |
| Skewness | .516 | .330 | .805 | -1.15 | -.0667 | 1.08 | .710 | .518 | .425 | -.412 |
| ND PC-8 | ||||||||||
| n | 12 | 15 | 3 | 9 | 9 | 15 | 8 | 15 | 12 | 15 |
| Mean (ppm) | 2.4 | 2.4 | .78 | .7 | 1.5 | 2 | 4.2 | 6 | 5.2 | 5.1 |
| Standard Dev (ppm) | .21 | .19 | .021 | .15 | .37 | 2.3 | .91 | 2.9 | .47 | .57 |
| Rel Std Dev (%) | 8.79 | 7.84 | 2.75 | 20.0 | 24.3 | 91.4 | 22.0 | 49.6 | 9.06 | 11.0 |
| Geometric Mean (ppm) | 2.4 | 2.4 | .78 | .7 | 1.5 | 2 | 4.1 | 5 | 5.1 | 5.1 |
| Dev of Means (%) | .35 | .28 | .02 | 1.89 | 2.32 | 23.46 | 2.10 | 10.7 | .37 | .58 |
| Kurtosis | -1.01 | -.482 | ERR | -1.10 | 3.38 | 9.67 | -1.55 | .0149 | -1.28 | -.438 |
| Skewness | .437 | -.415 | 1.32 | -.181 | 1.63 | 2.98 | .41 | 1.08 | .215 | -.163 |
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