A. 87
B. 99
C. 101
D. 112
[单选题]-1,0,8,25,54,( )。A.87B.99C.101D.112
[单选题]0 8 54 192 500 ( )A. 840 B 960 C 1080 D 1280
2 3 0 0-|||-1 1 0-|||-=-|||-4 8 12 6-|||-1 3 5 7-|||-计算-|||-A 27-|||-B 54-|||-C
[单选题]0,8,54,192,500,______ ( )A.820B.960C.1080D.1280
25.设随机变量(X,Y)的分布律为X-|||-Y -1 0 1-|||--1 dfrac (1)(8) dfrac (1)(8) dfrac (1)(8)-|
已知(X,Y)的联合分布律为-|||-Y-|||-X-|||--1 0 1-|||--1 1/8 1/8 1/8-|||-0 1/8 0 1/8-|||-1 1
[单选题]0 8 54 192 500 ( )A. 840 B 960 C 1080 D 1280
[单选题]3,8,9,0,-25,-72,( )A.-147B.-144C.-132D.-124
16.若随机变量(X,Y)的联合分布律为:-|||-X-|||--1 0 1-|||-Y-|||--1 1/8 1/8 1/8-|||-0 1/8 0 1/8-
[单选题]0,1/2 ,0, 1/8 ,0, 1/32 ,0,( )A. 1/120 B. 1/122 C. 1/124 D. 1/128