The American Association of Retired People (AARP) conducted a survey in which it was discovered that 63% of adult Americans don't want to live to be at least 100. On average, those polled wanted to live to the age of 91.
a. Should we consider the Americans polled to be a sample or a population?
b. There is a categorical variable of interest in the survey; tell roughly how the survey question was phrased to obtain those responses.
c. There is a quantitative variable of interest in the survey; tell roughly how the survey question was phrased to obtain those responses.