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.
Sr HP | Sr All | Y HP | Y All | Zr HP | Zr All | Nb HP | Nb All | Mo HP | Mo All | |
UF PC-1 | ||||||||||
n | 12 | 18 | 9 | 12 | 6 | 15 | 6 | 9 | 3 | 6 |
Mean (ppm) | 57 | 59 | 9 | 8 | 26 | 24 | 2.5 | 2.2 | 2.5 | 2.0 |
Standard Dev (ppm) | 7.6 | 7.0 | 1.0 | 2.3 | 1.7 | 7.8 | .21 | .49 | .39 | .62 |
Rel Std Dev (%) | 13.4 | 11.9 | 11.2 | 28.7 | 6.67 | 32.8 | 8.61 | 22.2 | 15.6 | 30.8 |
Geometric Mean (ppm) | 56 | 58 | 9 | 8 | 26 | 22 | 2.5 | 2.1 | 2.5 | 1.9 |
Dev of Means (%) | 1.13 | .90 | .56 | 5.38 | .19 | 7.22 | .30 | 2.61 | .77 | 4.01 |
Kurtosis | 10.8 | 11.8 | .0992 | .761 | -2.46 | .395 | -2.15 | -.202 | ERR | -.664 |
Skewness | -3.21 | -3.08 | .146 | -1.11 | .0672 | -.708 | -.232 | -.878 | 1.73 | .558 |
WY PC-2 | ||||||||||
n | 9 | 18 | 9 | 12 | 6 | 12 | 6 | 9 | 3 | 6 |
Mean (ppm) | 257 | 240 | 3.7 | 3.5 | 21 | 19 | 1.2 | 1.3 | .52 | .59 |
Standard Dev (ppm) | 6.6 | 49 | .13 | .40 | 2.1 | 3.1 | .25 | .28 | .021 | .087 |
Rel Std Dev (%) | 2.55 | 20.5 | 3.65 | 11.4 | 10.3 | 16.1 | 20.5 | 21.7 | 4.15 | 14.7 |
Geometric Mean (ppm) | 257 | 230 | 3.7 | 3.5 | 21 | 19 | 1.2 | 1.3 | .52 | .59 |
Dev of Means (%) | .03 | 2.42 | .06 | .71 | .45 | 1.38 | 1.87 | 2.13 | .06 | .91 |
Kurtosis | -.362 | -.106 | 2.11 | 5.55 | -1.97 | 1.65 | -1.1 | .745 | ERR | -2.58 |
Skewness | -.848 | -1.07 | -.152 | -2.25 | -.179 | -1.05 | -.453 | .339 | -.611 | .0571 |
IL PC-3 | ||||||||||
n | 12 | 18 | 9 | 12 | 6 | 15 | 5 | 8 | 3 | 6 |
Mean (ppm) | 32 | 34 | 4.1 | 4.3 | 23 | 22 | 2.2 | 2.3 | 6.3 | 5.7 |
Standard Dev (ppm) | 4.5 | 4.9 | .46 | .52 | 3.0 | 3.8 | .23 | .43 | .92 | .83 |
Rel Std Dev (%) | 13.9 | 14.6 | 11.1 | 12.1 | 13.3 | 17.6 | 11.2 | 18.7 | 14.7 | 14.43 |
Geometric Mean (ppm) | 32 | 33 | 4.1 | 4.2 | 23 | 21 | 2.1 | 2.2 | 6.3 | 5.7 |
Dev of Means (%) | .81 | .96 | .58 | .71 | .71 | 1.61 | .51 | 1.39 | .70 | .81 |
Kurtosis | .849 | -.592 | 2.23 | 1.10 | 1.65 | .0515 | -3.09 | 3.03 | ERR | 2.56 |
Skewness | 1.43 | .847 | -.558 | -.250 | .875 | -.634 | -.47 | 1.52 | 1.20 | 1.51 |
PITT PC-4 | ||||||||||
n | 12 | 18 | 9 | 12 | 6 | 15 | 6 | 9 | 3 | 6 |
Mean (ppm) | 64 | 70 | 4.4 | 4.0 | 19 | 18 | 1.8 | 1.8 | .74 | .77 |
Standard Dev (ppm) | 3.0 | 11 | .45 | .72 | 1.5 | 4.5 | .13 | .14 | .033 | .066 |
Rel Std Dev (%) | 4.73 | 16.1 | 10.3 | 17.9 | 7.65 | 24.8 | 7.45 | 7.63 | 4.51 | 8.69 |
Geometric Mean (ppm) | 64 | 68 | 4.3 | 4.0 | 19 | 18 | 1.8 | 1.8 | .74 | .77 |
Dev of Means (%) | .10 | 1.07 | .45 | 1.56 | .24 | 3.16 | .23 | .25 | .07 | .31 |
Kurtosis | 1.44 | 3.43 | -.0734 | -.295 | -2.45 | .802 | 1.3 | -.370 | ERR | -1.75 |
Skewness | .0462 | 1.95 | 1.11 | -.214 | .344 | .0791 | .440 | .631 | 1.12 | .540 |
POC PC-5 | ||||||||||
n | 12 | 18 | 9 | 12 | 6 | 15 | 6 | 9 | 3 | 6 |
Mean (ppm) | 100 | 100 | 6.3 | 5.9 | 16.5 | 17 | 1.0 | 1.0 | 2.7 | 2.5 |
Standard Dev (ppm) | 12 | 13 | .52 | .89 | .81 | 7.7 | .19 | .22 | .13 | .31 |
Rel Std Dev (%) | 11.3 | 12.8 | 8.24 | 15.2 | 4.92 | 45.2 | 19.0 | 21.1 | 5.1 | 12.8 |
Geometric Mean (ppm) | 100 | 100 | 6.3 | 5.8 | 16.4 | 16 | 1.0 | 1.0 | 2.7 | 2.4 |
Dev of Means (%) | .62 | .80 | .30 | 1.14 | .10 | 8.66 | 1.39 | 1.99 | .09 | .71 |
Kurtosis | -1.12 | -1.12 | -1.59 | -.703 | 1.48 | 1.00 | 1.37 | -1.53 | ERR | -.927 |
Skewness | -.726 | -.394 | .341 | -.479 | -1.49 | 1.30 | 1.31 | .296 | 1.48 | -.277 |
UT PC-6 | ||||||||||
n | 8 | 14 | 5 | 8 | 3 | 9 | 3 | 6 | 3 | 6 |
Mean (ppm) | 64 | 70 | 2.0 | 1.9 | 17.3 | 15 | .57 | .54 | .42 | .45 |
Standard Dev (ppm) | 5.2 | 12 | .12 | .17 | .58 | 3.4 | .070 | .062 | .023 | .063 |
Rel Std Dev (%) | 8.16 | 17.2 | 6.12 | 8.67 | 3.33 | 21.9 | 11.8 | 11.6 | 5.34 | 13.9 |
Geometric Mean (ppm) | 63 | 70 | 2.0 | 1.9 | 17.3 | 15 | .56 | .53 | .42 | .45 |
Dev of Means (%) | .28 | 1.26 | .16 | .35 | .04 | 2.48 | .50 | .52 | .10 | .79 |
Kurtosis | -1.87 | .249 | 2.00 | .994 | ERR | -.0765 | ERR | 1.54 | ERR | -1.11 |
Skewness | .718 | 1.21 | -1.36 | -1.01 | 1.73 | -.756 | 1.1 | .837 | 1.65 | .760 |
WV PC-7 | ||||||||||
n | 12 | 18 | 6 | 15 | 6 | 12 | 6 | 11 | 3 | 6 |
Mean (ppm) | 60 | 70 | 11.7 | 14 | 75 | 70 | 7 | 7 | 1.27 | .61 |
Standard Dev (ppm) | 11 | 13 | .82 | 4.9 | 6.7 | 26 | 1.3 | 6.0 | .049 | .21 |
Rel Std Dev (%) | 17.5 | 18.2 | 7.00 | 34.0 | 8.91 | 37.7 | 18.3 | 82.1 | 3.83 | 35.6 |
Geometric Mean (ppm) | 61 | 70 | 11.6 | 14 | 75 | 70 | 7 | 7 | 1.27 | .58 |
Dev of Means (%) | 1.41 | 1.74 | .20 | 5.52 | .34 | 8.60 | 1.43 | 11.46 | .05 | 5.74 |
Kurtosis | -.805 | -1.14 | -.300 | -1.33 | -2.08 | -.563 | -2.05 | -.303 | ERR | -3.2 |
Skewness | .354 | .042 | .857 | .454 | -.488 | -.527 | .054 | .611 | -.586 | .003 |
ND PC-8 | ||||||||||
n | 12 | 18 | 5 | 8 | 6 | 12 | 3 | 6 | 3 | 6 |
Mean (ppm) | 560 | 600 | 2.1 | 2.2 | 9 | 12 | .79 | .7 | .41 | .6 |
Standard Dev (ppm) | 65 | 100 | .22 | .26 | 3.4 | 4.8 | .050 | .12 | .024 | .22 |
Rel Std Dev (%) | 11.6 | 16.7 | 10.4 | 11.7 | 38.3 | 39.1 | 6.34 | 18.2 | 5.83 | 35.5 |
Geometric Mean (ppm) | 560 | 600 | 2.1 | 2.2 | 8 | 11 | .79 | .7 | .41 | .6 |
Dev of Means (%) | .61 | 1.30 | .45 | .62 | 7.14 | 8.59 | .14 | 1.44 | .11 | 5.73 |
Kurtosis | -2.04 | -.458 | -2.37 | -.130 | -2.21 | -.527 | ERR | -1.40 | ERR | -3.21 |
Skewness | .239 | .641 | -.559 | -.380 | -.115 | .0785 | -.59 | -.199 | -.609 | .00375 |
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