设 X~N(1,4), 且 circled (1)(0.3)=0.6179, 则 Xleqslant 1.6 = ()A.0.3821B.0.6179C.0.6238D.0.3947

• A.
  0.3821
• B.
  0.6179
• C.
  0.6238
• D.
  0.3947