Three freshmen, 3 sophomores, 3 juniors, and 3 seniors are participating on the debate team. The team's captain is randomly selected from any grade level. What is the probability that a freshman will NOT be selected as captain?

There are a total of 12 students on the debate team, with 3 of them being freshmen.

The probability of selecting a freshman as captain is 3/12 = 1/4.

Therefore, the probability of NOT selecting a freshman as captain is 1 - 1/4 = 3/4.