Parameter

Coefficients Value

Probability

Robust probability

(VIF)

Intercept

−26,000.95

0.08* × 10−4

0.17* × 10−4

Household size

1997.01

0.80* × 10−2

0.67* × 10−2

2.49

Household Income

20.02

0.38* × 10−2

0.53* × 10−2

1.24

Household rooms

5961.32

0.01* × 10−4

0.00*

1.12

Education level

−99.83

0.71

0.32

1.07

Households

−3.91

0.21

0.08

1.99

Meter connections

148.23

0.66* × 10−4

0.17* × 10−4

1.55