A . 230
B . 200
C . 210
D . 180
[单选题]某连续变量数列,其末组为开口组,下限为200,又知其相邻组的组中值为170,则末组的组中值为()。A . 190B . 215C . 230D . 285
[单选题]某等距连续变量数列,其末组为开口组,下限为200,又知其邻组的组中值为170,则末组组中值为( )。A.260B.215C.230D.285
[单选题]某连续变量数列,其末组为开口组,下限为200,又知其邻组的组中值为170,则末组组中值为( )。A.260B.215C.230D.285
[单选题]某连续变量数列,其末组为开口组,下限为200,又知其邻组的组中值为170,则末组组中值为( )。A.260B.215C.230D.185
[单选题]某连续变量数列,其末组为开口组,下限为200,又知其邻组的组中值为170,则末组组中值为( )。A.260B.215C.230D.285
[单选题]某连续变量数列,其末组为开口组,下限为200,又知其邻组的组中值为170,则末组组中值为()。A .260B .215C .230D . D.285
[单选题]某连续变量数列,其末组为开口组,下限为500,相邻组的组中值为480,则末组的组中值为()。A .520B .510C .500D .540
[单选题]某连续变量数列,其末组为开Vl组,下限为200,又知其邻组的组中值为170,则末组组中值为( )。A.2608B.215C.230D.285
[单选题]连续变量的数列中,其末组为开口组,下限是1100,相邻组的组中值为1050,则末组的组中值为( )。A.1050B.1100C.950D.1150
[单选题]某连续变量数列,其首组为开口组,上限为800,又已知其邻组组中值为900,则首组组中值为()A . 750B . 700C . 650D . 600