Since "unique" means "different from everything else", is this asking for the expected cardinality of numbers which have been visited exactly once? Or is it an infelicitous attempt to ask for the expected cardinality of the set of numbers which have been visited, i.e. the expected number of distinct numbers visited?the expected number of unique numbers visited
Problem 959
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pjt33
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Problem 959
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heteroing
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Re: Problem 959
The only interpretation I considered was the second one, the cardinality of the set of numbers which have been visited. Your first interpretation didn't come to mind for me, if it were the case then it would've probably been phrased "the expected number of numbers visited exactly once" or something similar, I guess. Maybe distinct is a better word to use, if there is any possibility of misinterpretation.
