(来学网)正态分布μ±2.85σ的面积占总面积的
  • A.
    (来学网)95.00%
  • B.
    (来学网)68.27%
  • C.
    (来学网)98.00%
  • D.
    (来学网)95.45%
  • E.
    (来学网)99.00%