Concerned about global warming? The Institute for Public Opinion Research at Florida International University has conducted the FIU/Florida Poll of about 1200 Floridians annually since 1988 to track opinions on a wide variety of issues. In 2006 the poll asked, "How concerned are you about the problem of global warming?" The possible responses were very concerned, somewhat concerned, not very concerned, and haven't heard about it. The poll reported percentages (44, 30, 21, 6) in these categories.
a. Identify the sample and the population.
b. Are the percentages quoted statistics or parameters? Why?