A researcher, in attempting to sample the population of Cleveland, decides to select 5 households from each block designated for inclusion in the sample. The blocks themselves are to be selected with variable probabilities depending on their size. This is an example of
a. one stage area sampling.
b. quota sampling.
c. simple two stage area sampling.
d. probability proportional to size area sampling.
e. systematic sampling.
Question 2
Probability proportional to size sampling requires that a
a. certain proportion of second stage units will be selected from each first stage unit.
b. fixed number of second stage units be selected from each first stage unit selected.
c. variable ratio of first stage units be selected.
d. variable proportion of first stage units be selected.
e. None of the above.
Projected Ethnic Changes in U.S. Population to 2050
Cotton Production and Slave Population, 1800–1860
A sample flow sheet.
Projections of the Racial-Ethnic Makeup of the U.S. Population
Population Pyramids
Population and Settlement