设随机变量 approx N(1.4), 标准正态分布函数为ϕ(x),则 (Xleqslant 3.5) 的值为 () 。-|||-A D (0.625 )-|||-B https:/img.cdnjtzy.com/zyb_e0ac46a3587c50378324c91c14c48ebc.jpg-(1)(0.625)-|||-C D (1.25)-|||-D https:/img.cdnjtzy.com/zyb_e0ac46a3587c50378324c91c14c48ebc.jpg-(1)(1.25)