题目10.(5.0分)已知X~N(-2,0.4²),则E[(X+3)²]=()A. 4B. 9C. 0D. 1.1610.(5.0分)已知X~N(-2,0.4²),则E[(X+3)²]=()A. 4B. 9C. 0D. 1.16题目解答答案D. 1.16