GRE Problem Solving Question 1073

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Set A: {7, 4, 1, 0, 5, 8, 10, 10, 13, 21}In Set A above, if positive integer x is subtracted from the 3 largest numbers in the list and x is added to the 3 smallest even numbers in the list, which of the following will be true ?

  • A The average of the set will increase by x.
  • B The average of the set will decrease by x.
  • C The average of the set will stay the same.
  • D There will be no mode in the new set.
  • E The standard deviation of the set will stay the same.
  • F The median of the set will stay the same.

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