Which of these is an example of secondary data? a. data gathered from doing participant observation b. the results of a researcher's questionnaire c. information on the population from the census bureau d. the results of one's sociological telephone survey?

Initially, northerners did not want missouri to be included in the union because 1.) maine would not be allowed to enter the union as a free state 2.) missouri wanted to enter the union as a free state 3.) missouri wanted to enter the union as a slave state 4.) maine would not be allowed to enter the union as a slave state