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The problem of selecting a random sample of precisely n records from a tape film containing N records sometimes arises in data processing applications. If a means of obtaining a random sample of n integers r 1 , r 2 , … , r n selected from the N integers 1, 2, … , N is available, the problem is theoretically simple. All that need be done is to then select the r 1 th, r 2 th, … , r n th records.
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Tanner Jones (1962) studied this question.
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