Research Article
Prediction of California Bearing Ratio of Granular Soil by Multivariate Regression and Gene Expression Programming
Table 3
Descriptive statistics analysis of the tested samples.
| ā | Gravel % | Fines % | Sand % | Liquid limit | Plastic limit | Plasticity index | Maximum dry density | Optimum moisture content | CBR % |
| Mean | 56.421 | 15.327 | 28.3 | 7.8 | 6.181 | 1.623 | 2.15 | 7.73 | 89.45 | Std. error of mean | 3.028 | 1.054 | 2.35 | 1.841 | 1.48 | 0.377 | 0.0124 | 0.288 | 7.37 | Std. deviation | 19.856 | 6.91 | 15.43 | 12.07 | 9.7 | 2.473 | 0.08134 | 1.89 | 48.32 | Variance | 394.27 | 47.81 | 238.17 | 145.8 | 94.06 | 6.12 | 0.07 | 3.591 | 2334.77 | Median | 63.4 | 14 | 19.1 | 0 | 0 | 0 | 2.157 | 7 | 60 | Minimum | 10.70 | 5.3 | 12.63 | 0.00 | 0.00 | 0.00 | 1.91 | 5.60 | 21 | Maximum | 80.37 | 28.3 | 75.8 | 35.20 | 28.70 | 6.80 | 2.24 | 16.50 | 172 |
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