相关疑难解决方法(0)

给定以下简单数据集,对于集合0 25 53和80的值的平均值的最佳方法是什么.

  [["0", "148.5"],
   ["0", "146.5"],
   ["0", "148.6"],
   ["0", "202.3"],
   ["25", "145.7"],
   ["25", "145.5"],
   ["25", "147.4"],
   ["25", "147.3"],
   ["53", "150.4"],
   ["53", "147.6"],
   ["53", "147.8"],
   ["53", "215.4"],
   ["80", "150.4"],
   ["80", "149.4"],
   ["80", "148.0"],
   ["80", "149.9"]]