(the a and b questions must choose the right answer with a fraction)

A multiple-choice exam has six possible answers for each question. For each correct answer, you are awarded 7 points. For each incorrect answer, 1 point is subtracted from your score. For answers left blank, no points are added or subtracted.

a) If you do not know the correct answer to a particular question, is it to your advantage to guess? Explain.

b) If you do not know the correct answer but can eliminate one possible choice, is it to your advantage to guess? Explain.

a) Select the correct choice below and, if necessary, fill in the answer box within your choice.

A. No, it is a disadvantage to guess because the expectation is nothing (Simplify your answer.)

B. No, it is neither an advantage nor disadvantage to guess because the expectation is 0.

C. Yes, it is to your advantage to guess because the expectation is

nothing

.(Simplify your answer.)

b) If you do not know the correct answer but can eliminate one possible choice, is it to your advantage to guess? Explain.

A. No, it is a disadvantage to guess because the expectation is nothing (Simplify your answer.

B. No, it is neither an advantage nor disadvantage to guess because the expectation is 0.

C. Yes, it is to your advantage to guess because the expectation is nothing

(Simplify your answer.)