SOLUTION: Hey, got referred by an army buddy, can a mathematician give some help on a couple textbook questions? Student taking test, several multiple choice questions. 1 point awarded fo

Question 729313: Hey, got referred by an army buddy, can a mathematician give some help on a couple textbook questions?
Student taking test, several multiple choice questions. 1 point awarded for each correct. If there are 3 options for each question, and 1/2 point is penalized for each wrong answer, s it in the best interest to guess? Why?

2nd question: If there are five options for each question, 1/2 points penalized for each wrong answer, how many options must student be able to rule out before the expected value of guessing is zero?
Answer by lynnlo(4176) (Show Source): You can put this solution on YOUR website!

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