A true-false test consists of 20 questions, each of which has one correct answer: true, or false. One point is awarded for every correct answer, but one point is taken off for each wrong answer. Suppose a student answers every question by guessing at random, independently of other questions. Let S be the student’s score on the test.

Question

A true-false test consists of 20 questions, each of which has one  correct answer: true, or false. One point is awarded for every correct answer, but one point is taken off for each wrong answer. Suppose a student answers every question by guessing at random, independently of other questions. Let S be the student’s score on the test.

anonymous · Answer

It's the Germans...that is the answer to everything.

anonymous · Answer

what do you mean by it's the Germans, that is the answer to everything