At first it was conducted by U.S. marshals, but later surveys were sent to most American households,
with census workers helping those who didn't promptly return their surveys.
Not exact matches
He said
census officials also don't want to burden field
workers with carrying two different devices, that is, a tablet and a smartphone.
Immigrants account for about a quarter of all STEM
workers with college degrees or higher in the 2000
census; about half of those have doctorates.