题目1.单选题-|||-设 sim N(M,(sigma )^2) ,则 +b 服从-|||-A N(0,1)-|||-B ○ (aM+b,(a)^2(a)^2)-|||-C ○ (aykparallel b,(a)^2(a)^2)-|||-D .(aM+b,a(a)^2)题目解答答案B. $N(aM+b,{a}^{2}{a}^{2})$
