Table 5.
Estimates of population parameters and relative variability of stem diameter (inches) for the more common older street tree species in Rochester and Syracuse.
| Species | Rochester | Syracuse | ||||||
|---|---|---|---|---|---|---|---|---|
| Pop. size N | Mean  | Standard deviation s | Coeff. of var. c.v. | Pop. size N | Mean  | Standard deviation s | Coeff. of var. c.v. | |
| Norway maple | 305 | 16.95 | 6.48 | 38% | 160 | 16.96 | 5.06 | 30% |
| sugar maple | 146 | 15.30 | 7.13 | 47% | 167 | 20.25 | 6.34 | 31% |
| silver maple | 295 | 26.52 | 6.42 | 24% | 138 | 25.51 | 8.13 | 32% |
| red maple | 17 | 19.53 | 9.07 | 46% | 75 | 17.20 | 8.41 | 49% |
| white ash | 101 | 20.11 | 6.94 | 35% | 37 | 20.68 | 5.79 | 28% |