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Table 3 Weighting and ranges for allocation to tracts

From: Evaluating geographic imputation approaches for zip code level data: an application to a study of pediatric diabetes

Tract ID

Tract Area in ZCTA (km2)

Proportion Tract Area in ZCTA

Cumulative Proportion

Range

T1

171.37

0.84

0.84

0.00 - 0.84

T2

15.75

0.07

0.91

0.84 - 0.91

T3

9.77

0.05

0.96

0.91 - 0.96

T4

5.61

0.03

0.99

0.96 - 0.99

T5

0.03

0.01

1.00

0.99 - 1.00