The Gallup Poll conducted a study to find the proportion of adults who are in favor of legalizing

marijuana. Based on the 1,017 responses, 60% of respondents voted yes (in favor). Results for the poll

are based on telephone interviews conducted Oct. 5-9, 2016 with the random sample of adults, aged 18

and older, living in all 50 U.S. states and the District of Columbia.

1. a)What type of study was conducted?
2. b)What is the population?