8. The correct answer is (A). Statement (1) tells you that there are 4 distinguishable
people to be arranged. That’s all you need to know to determine the number of possible
sequences or permutations. From that number, you’d determine the probability that the
4 students are lined up in any one specific order simply by dividing 1 by the number of
possibilities. Statement (1) alone suffices to answer the question. (For the record, to find
the number of permutations, you can either list them systematically or apply the
factorial 4! 5 4 3 3 3 2 3 1 5 24. Of 24 possibilities, in only one would the 4 students
line up in the order given in the question, and the answer to the question is 1
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