Sample statistics for time-invariant attributes
| Attributes | Mean | Std. Dev. | Min. | Max. |
|---|---|---|---|---|
| Living area (ft2) | 2,700.15 | 854.93 | 1,170 | 6,100 |
| (m2) | (251.18) | (79.53) | (108.84) | (567.45) |
| Number of floors | 1.52 | 0.51 | 1 | 3 |
| Family size | 2.5 | 1.13 | 1 | 7 |
| Family size by gender | ||||
| Male | 1.25 | 0.87 | 0 | 5 |
| Female | 1.25 | 0.60 | 0 | 3 |
| Family size by age group | ||||
| ≤12 years | 0.45 | 0.90 | 0 | 5 |
| 13 to 24 years | 0.19 | 0.50 | 0 | 3 |
| 25 to 60 years | 1.25 | 0.88 | 0 | 3 |
| >60 years | 0.62 | 0.85 | 0 | 2 |
| Age of the house (Yr) | 14.49 | 12.36 | 1 | 57 |
| Age of air conditioner (Yr) | 7.52 | 5.85 | 1 | 32 |
| Age of heating unit (Yr) | 7.94 | 5.95 | 1 | 32 |
| Age of water heater (Yr) | 7.21 | 5.20 | 1 | 28 |
| No. of laundry/week | 5.53 | 3.08 | 1 | 21 |