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If Set R = {223, 225, 227, 229, 231, 233, 235, 237}, and Set S is formed such that it contains exactly 6 distinct numbers that are members of Set R, what is the standard deviation of the numbers in Set S?

  1. The average (arithmetic mean) of the numbers that are members of Set S is equal to the average of the numbers that are members of Set R.
  2. Set S does not contain 223.
  • AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
  • BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
  • CBOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
  • DEACH statement ALONE is sufficient.
  • EStatements (1) and (2) TOGETHER are not sufficient.
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正确答案: C

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