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What is the mode of the following set of numbers: 2, 4, 6, 8, 2, 4, 8 ?

  1. 2

  2. 4

  3. 6

  4. 8

The correct answer is: 2

The mode of a set of numbers refers to the number that appears most frequently. In this case, both 2 and 8 appear twice, while 4 appears twice. However, 2 is the smallest number between the three numbers that appear more than once, making it the mode. Therefore, the correct answer is A. The other options, while they may appear more often than other numbers in the set, do not appear more often than 2. This is why they are incorrect choices for the mode in this particular set of numbers.