Usa today reported that 44.9% of those surveyed (1261 adults) ate in fast-food restaurants from one to three times each week. (assume that the survey asked "do you eat in fast-food restaurants from one to three times each week? ")

The question is incomplete, the complete question is;
USA Today reported that 44.9% of those surveyed (1261 adults) ate in fast-food restaurants from one to three times each week. (Assume that the survey asked "Do you eat in fast-food restaurants from one to three times each week?")Identify the variable. Is the variable quantitative or qualitative? What is the implied population?

a) Let the total population be x,
So here, 44.9% of x = 1261 and 44.9% = 44.9/100 = 0.499
thus, the variable here is the population (x) ,
and => x= 1261 / 2527.05
b) it is quantitative.
c)  Response from all adults is the implied population and response from 1261 adults surveyed is the sample.