A farmer sows 100 seeds of a new type of corn and wants to quickly determine the yield, or total number of ears of corn, for the crop when it has matured. He decides to take a simple random sample of the crop by using a random digit table. What is the fewest number of digits that should be used, given that there are 100 plants in total?
Two digits can identify 100 plants by assigning labels from 00 to 99. A random digit table can then select among those 100 labels, so the fewest number of digits needed is 2. One digit would identify only 10 labels.
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