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.
| Sm HP | Sm All | Eu HP | Eu All | Tb HP | Yb HP | Yb All | Hf HP | Ta HP | |
| UF PC-1 | |||||||||
| n | 6 | 6 | 6 | 6 | 6 | 6 | 9 | 6 | 6 |
| Mean (ppm) | 1.8 | 1.8 | .37 | .37 | .248 | .85 | .85 | .8 | .21 |
| Standard Dev (ppm) | .24 | .24 | .035 | .035 | .0190 | .073 | .059 | .11 | .020 |
| Rel Std Dev (%) | 14.3 | 14.3 | 9.63 | 9.63 | 7.66 | 8.6 | 6.97 | 14.5 | 9.30 |
| Geometric Mean (ppm) | 1.7 | 1.7 | .37 | .37 | .247 | .85 | .84 | .7 | .21 |
| Dev of Means (%) | .87 | .87 | .39 | .39 | .25 | .32 | .22 | .86 | .37 |
| Kurtosis | -2.89 | -2.89 | -2.17 | -2.17 | .088 | -1.63 | -.52 | -1.12 | -1.56 |
| Skewness | -.132 | -.132 | -.217 | -.217 | -.026 | -.61 | -.45 | .617 | -.24 |
| WY PC-2 | |||||||||
| n | 6 | 6 | 6 | 6 | 6 | 6 | 9 | 6 | 6 |
| Mean (ppm) | .8 | .8 | .18 | .18 | .11 | .40 | .36 | .64 | .12 |
| Standard Dev (ppm) | .15 | .15 | .021 | .021 | .009 | .048 | .071 | .053 | .019 |
| Rel Std Dev (%) | 18.0 | 18.0 | 12.0 | 12.0 | 8.96 | 12.2 | 19.6 | 8.17 | 14.8 |
| Geometric Mean (ppm) | .8 | .8 | .18 | .18 | .11 | .39 | .36 | .64 | .13 |
| Dev of Means (%) | 1.39 | 1.39 | .64 | .64 | .34 | .66 | 1.92 | .28 | .98 |
| Kurtosis | -2.97 | -2.97 | -1.37 | -1.37 | -2.08 | -.54 | -.23 | .108 | .270 |
| Skewness | -.133 | -.133 | -.934 | -.934 | -.206 | -.848 | -.633 | -.288 | -.694 |
| IL PC-3 | |||||||||
| n | 6 | 6 | 6 | 6 | 6 | 6 | 9 | 6 | 6 |
| Mean (ppm) | 1.1 | 1.1 | .21 | .21 | .14 | .52 | .56 | .7 | .18 |
| Standard Dev (ppm) | .15 | .15 | .021 | .021 | .011 | .015 | .061 | .15 | .013 |
| Rel Std Dev (%) | 13.6 | 13.6 | 10.4 | 10.4 | 8.0 | 2.85 | 10.9 | 22.4 | 7.04 |
| Geometric Mean (ppm) | 1.1 | 1.1 | .21 | .21 | .14 | .52 | .55 | .6 | .18 |
| Dev of Means (%) | .91 | .91 | .47 | .47 | .27 | .03 | .50 | 1.95 | .23 |
| Kurtosis | 4.90 | 4.90 | -1.37 | -1.37 | -.173 | 4.15 | .670 | 1.38 | 2.79 |
| Skewness | -2.16 | -2.16 | -.991 | -.991 | -.586 | 1.91 | 1.31 | 1.26 | -1.56 |
| PITT PC-4 | |||||||||
| n | 6 | 6 | 6 | 6 | 6 | 6 | 9 | 6 | 6 |
| Mean (ppm) | 1.0 | 1.0 | .19 | .19 | .12 | .450 | .48 | .56 | .15 |
| Standard Dev (ppm) | .15 | .15 | .025 | .025 | .011 | .0243 | .063 | .062 | .019 |
| Rel Std Dev (%) | 16.0 | 16.0 | 12.0 | 12.0 | 8.87 | 5.14 | 13.08 | 11.2 | 12.4 |
| Geometric Mean (ppm) | .9 | .9 | .19 | .19 | .12 | .449 | .48 | .56 | .15 |
| Dev of Means (%) | 1.13 | 1.13 | .60 | .60 | .33 | .11 | .70 | .52 | .65 |
| Kurtosis | -1.83 | -1.83 | -2.74 | -2.74 | -2.48 | 2.04 | 4.57 | -2.64 | -2.86 |
| Skewness | -.518 | -.518 | .033 | .033 | -.371 | -.11 | 1.95 | .018 | -.108 |
| POC PC-5 | |||||||||
| n | 6 | 9 | 6 | 6 | 6 | 6 | 9 | 6 | 6 |
| Mean (ppm) | 1.1 | 1.0 | .22 | .22 | .165 | .56 | .53 | .50 | .12 |
| Standard Dev (ppm) | .13 | .20 | .015 | .015 | .0074 | .012 | .059 | .073 | .011 |
| Rel Std Dev (%) | 12.0 | 20.6 | 6.61 | 6.61 | 5.39 | 2.11 | 11.24 | 14.5 | 9.48 |
| Geometric Mean (ppm) | 1.1 | 1.0 | .22 | .22 | .164 | .56 | .52 | .50 | .11 |
| Dev of Means (%) | .62 | 2.01 | .18 | .18 | .12 | .02 | .60 | .87 | .40 |
| Kurtosis | -2.59 | -1.45 | -1.84 | -1.84 | -1.09 | -.22 | -.805 | -2.73 | -.802 |
| Skewness | -.309 | -.147 | .660 | .660 | -.52 | -.635 | -.964 | .217 | .15 |
| UT PC-6 | |||||||||
| n | 6 | 9 | 6 | 7 | 6 | 6 | 9 | 6 | 6 |
| Mean (ppm) | .44 | .42 | .092 | .094 | .056 | .20 | .20 | .52 | .052 |
| Standard Dev (ppm) | .076 | .069 | .0086 | .0105 | .0051 | .008 | .009 | .053 | .0087 |
| Rel Std Dev (%) | 17.3 | 16.7 | 9.54 | 11.31 | 9.01 | 3.91 | 4.35 | 10.3 | 16.7 |
| Geometric Mean (ppm) | .43 | .41 | .091 | .094 | .056 | .20 | .20 | .52 | .052 |
| Dev of Means (%) | 1.26 | 1.17 | .38 | .56 | .33 | .06 | .08 | .43 | 1.28 |
| Kurtosis | -3.27 | -1.65 | -1.15 | -.37 | .395 | -.509 | -.008 | -.57 | .02 |
| Skewness | .0210 | .852 | -.585 | -.07 | 1.04 | -.429 | .067 | .72 | -1.08 |
| WV PC-7 | |||||||||
| n | 6 | 8 | 6 | 9 | 6 | 6 | 9 | 6 | 6 |
| Mean (ppm) | 3.2 | 2.8 | .64 | .6 | .398 | 1.6 | 1.6 | 2.1 | .63 |
| Standard Dev (ppm) | .40 | .76 | .036 | .12 | .020 | .12 | .15 | .28 | .043 |
| Rel Std Dev (%) | 13.1 | 27.1 | 5.75 | 19.6 | 5.08 | 7.49 | 9.59 | 12.6 | 6.99 |
| Geometric Mean (ppm) | 3.1 | 2.7 | .64 | .6 | .397 | 1.6 | 1.6 | 2.1 | .63 |
| Dev of Means (%) | .70 | 3.82 | .14 | 1.67 | .11 | .24 | .403 | .68 | .20 |
| Kurtosis | -3.03 | -1.03 | -1.31 | 1.74 | .689 | -1.27 | -1.32 | -3.22 | .190 |
| Skewness | -.098 | -.644 | .416 | .76 | .318 | -.256 | .362 | -.049 | -.49 |
| ND PC-8 | |||||||||
| n | 6 | 7 | 6 | 6 | 6 | 6 | 9 | 6 | 3 |
| Mean (ppm) | .33 | .35 | .07 | .07 | .055 | .26 | .24 | .38 | .093 |
| Standard Dev (ppm) | .10 | .10 | .015 | .015 | .0044 | .041 | .043 | .046 | .0040 |
| Rel Std Dev (%) | 28.4 | 28.4 | 22.4 | 22.4 | 8.06 | 15.9 | 18.0 | 12.4 | 4.36 |
| Geometric Mean (ppm) | .34 | .34 | .07 | .07 | .055 | .26 | .24 | .38 | .093 |
| Dev of Means (%) | 4.11 | 4.11 | 2.10 | 2.10 | .26 | 1.02 | 1.36 | .63 | .06 |
| Kurtosis | -.869 | -.869 | -2.52 | -2.52 | 1.05 | -1.18 | -.237 | -1.95 | ERR |
| Skewness | -.559 | -.559 | .138 | .138 | 1.43 | .548 | .854 | .41 | -1.73 |
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