"USA Today has come out with a new survey - apparently, three out of every four people make up 75% of the population"

This quote by David Letterman is an amusing method of pointing out the absurdity of stats. He is implying that the survey performed by USA Today is flawed, as it is difficult for three out of every four individuals to make up 75% of the population. This is since 75% is a bigger number than 4, so it is difficult for three out of 4 individuals to make up that portion. Letterman is poking fun at the survey, and the reality that it is not accurate. He is also highlighting the truth that surveys can be deceptive, which it is essential to take them with a grain of salt. This quote is a humorous way of reminding us to be critical of the details we receive, and to question the precision of surveys and data.