Dependent Variable
“Y”
Constant “α”
Independent Variable
R
R2
EC
“a”
TDS “b”
TH “c”
“d”
Cl− “e”
“f”
Na+ “g”
Ca2+ “h”
Mg2+ “I”
K+ “j”
CWQI-C1
122.394
−0.006
−0.016
−0.148
−0.031
−0.077
0.232
−0.063
0.180
0.037
0.370
0.94
0.88
CWQI-C2
24.718
--
--
−0.131
0.034
0.067
0.016
0.016
--
0.187
−0.057
1
1
CWQI-C3
98.920
0.044
−0.033
0.056
−0.059
−0.283
−0.074
0.342
−0.240
−0.185
−3.508
0.76
0.58