In an effort to gauge how the country's population feels about the immigration, researchers surveyed adult citizens. One question asked was, "On the whole, do you think immigration is a good thing or a bad thing for this country today?" The results of the survey, by ethnicity, are given in the acompanying table. Complete parts (a) through (f). Click the icon to view the data table. (a) How many adult citizens were surveyed? - X Data table Non-Hispanic Blacks Hispanics Whites Good thing 185 152 144 Bad thing 110 101 33 Good and bad 9 14 12 No opinion CO 11 6