单选

在数据处理过程中,人们常用“四舍五入”法取得近似值。对于统计大量正数的平均值而言,从统计意义上说,“四舍五入”对于计算平均值(65)。

  • A.不会产牛统计偏差
  • B.产生略有偏高的统计偏差
  • C.产生略有偏低的统计偏差
  • D.产生忽高忽低结果,不存在统计规律
参考答案
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