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If a multiple-choice test consists of 5 questions each with 4 possible answers of which only 1 is correct,

(a) In how many different ways can a student check off one answer to each question?

(b) In how many different ways can a student check off one answer to each question and get all the answers wrong?

I feel like if I could get a hint on (a) I could do (b) as well, but I am a little stuck trying to figure out which rule to apply. These are permutations correct? (the arrangement of answers.)

Or should I just apply the "multiplication rule" somehow?

Can I get just a hint here?

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# Homework Help: Number of Possible Arrangements (Permutations?)

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