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      Question

      The median of a set of 11 distinct observations is 73.2.

      If each of the largest five observations of the set is increased by 3, then the median of the new set:
      A is 3 times that of the original set Correct Answer Incorrect Answer
      B is increased by 3 Correct Answer Incorrect Answer
      C remains the same as that of the original set Correct Answer Incorrect Answer
      D is decreased by 3 Correct Answer Incorrect Answer

      Solution

      ATQ, [(n + 1)/2]th observation observation = 6th observation ∵ The 6th observation is not changed. ∴ The median of the new set remains the same.

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