Comment by ctgPi on Shut Up And Guess · 2009-07-21T19:01:03.237Z · LW · GW

For an exam where what matters is your grade relative to other test-takers, like the SAT, probably yes, but on an exam with a hard pass/fail threshold, the utility function is discontinuous (and therefore non-linear) around the threshold, so guessing might make a difference.