(来学网)横轴上,标准正态曲线下从0到1.96的面积为()
  • A.
    (来学网)95%
  • B.
    (来学网)45%
  • C.
    (来学网)97.50%
  • D.
    (来学网)47.50%
  • E.
    (来学网)49.50%