Currently, California has the largest population with 39,776,830 residents, and Wyoming has the smallest population with 573,520 residents.

a. Are the population sizes of the different states discrete or continuous?

b. What is the level of measurement for the numbers of residents in the different states? (nominal, ordinal, interval, ratio)

c. What is wrong with surveying state residents by mailing questionnaires to 10,000 of them who are randomly selected?

d. If we randomly select 50 full-time workers in each of the 50 states, what type of sample is obtained? (random, systematic, convenience, stratified, cluster)

e. If we randomly select two states and survey all of their adult residents, what type of sample is obtained? (random, systematic, convenience, stratified, cluster)