Table 6 Descriptive statistics of the input variables and compressive strength.
Inputs | Mean | Minimum | Maximum | Skewness | Standard deviation | Variance | Kurtosis |
|---|---|---|---|---|---|---|---|
Cement | 427.94 | 272.25 | 550 | -0.337 | 86.4137 | 7467.322 | -0.845 |
RHA | 91.93 | 0 | 222.75 | 0.274 | 72.2829 | 5224.821 | -1.034 |
FA | 701.63 | 675 | 825 | 1.919 | 52.8816 | 2796.467 | 1.708 |
RCA | 448.43 | 0 | 1080 | 0.011 | 350.2647 | 122685.331 | -1.238 |
NCA | 460.93 | 0 | 1080 | 0.156 | 349.7863 | 122350.483 | -1.283 |
Water | 180.39 | 164 | 205 | 1.488 | 11.1240 | 123.743 | 1.046 |
SP | 10.74 | 5.44 | 12 | -1.593 | 2.4081 | 5.799 | 0.774 |
Sodium sulfate | 6.96 | 0 | 14.85 | -0.005 | 6.9503 | 48.307 | -2.012 |
Age | 46.79 | 3 | 120 | 0.551 | 39.1084 | 1529.469 | -1.092 |
Compressive strength | 42.68 | 6.32 | 93 | 0.186 | 17.6882 | 312.873 | -0.277 |
