stats question,
i dont know how to do this question:
A student, Tom, sits a multi-choice exam in a subject he knows nothing about. There are twenty questions, and each question has four answers, only one of which is correct.

Suppose another student, Sarah, tried a slightly different guessing strategy, by avoiding picking the same answer twice in a row (e.g. if she answers (b) in one question then she randomly picks one of (a), (c) or (d) in the next). If the answers were placed by the examiners in random order for each question, does her plan improve her chance of passing?

Question

stats question,
i dont know how to do this question:
A student, Tom, sits a multi-choice exam in a subject he knows nothing about. There are twenty questions, and each question has four answers, only one of which is correct.

 Suppose another student, Sarah, tried a slightly different guessing strategy, by avoiding picking the same answer twice in a row (e.g. if she answers (b) in one question then she randomly picks one of (a), (c) or (d) in the next). If the answers were placed by the examiners in random order for each question, does her plan improve her chance of passing?

e_s_j_f · Answer

@Nnesha