Table 1 Descriptive statistics for US Census tracts (n = 66,857)
Measure | Mean (SD) | Min–Max | Skewness | Kurtosis |
|---|---|---|---|---|
Life expectancy (LE) at birth | 78.3 (4.0) | 56.3–97.5 | − 0.26 | 0.36 |
Population density (per square mile) | 5231 (11,729) | 0.01–508,697 | 7.27 | 100.8 |
Median household income ($) | 66,792 (32,688) | 2744–250,000 | 1.41 | 2.86 |
Gini index | 0.426 (0.064) | 0–1 | 0.54 | 1.32 |
Percent Black or African American | 13.9 (21.8) | 0–100 | 2.24 | 4.43 |
Percent Hispanic/Latino/a/x | 16.0 (22.8) | 0–100 | 2.07 | 3.71 |
Median age (years) | 38.1 (7.5) | 12.1–94.0 | 0.46 | 1.71 |
Percent with bachelor’s degree or higher | 30.7 (19.3) | 0–100 | 0.88 | 0.09 |
Population size | 4445 (2349) | 22–72,041 | 2.67 | 29.3 |