皮皮学，免费搜题
登录
logo - 刷刷题
搜题
【单选题】
一个离散型的随机变量X,X=0的概率为0.75,X=1的概率为0.12,X=2的概率为0.08,X=3的概率为0.06;那么X的方差为:
A.
0.43
B.
0.7051
C.
0.8397
D.
1
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案：
举一反三
【简答题】My name is Joe. Do you want to know about my hobby? I like music very much. There are many clubs in our school and I want to join the music club. Lisa and Linda are my friends. Lisa is a girl and she ...
查看完整题目与答案
【单选题】下列不属于船舶总载重量的是 。
A.
螺旋桨
B.
备件
C.
固定压载
D.
船员行李
查看完整题目与答案
【多选题】以下属于创业的一般条件的是( )
A.
资金
B.
市场
C.
环境
D.
关系
查看完整题目与答案
【单选题】60下列不属于船舶总载重量的是:
A.
螺旋桨
B.
备品
C.
固定压载
D.
船员行李
查看完整题目与答案
【单选题】A lot of people as well as the president of the animal protection association ____________ experiments on animals.
A.
are opposed to do
B.
oppose to doing
C.
is opposed to doing
D.
oppose doing
查看完整题目与答案
【多选题】高校性骚扰发生概率大的原因有
A.
侵犯者有社会角色做掩护外
B.
权利太大
C.
监督太少
D.
学生不敢、无力反抗
查看完整题目与答案
【单选题】下列不属于船舶总载重量的是
A.
备品
B.
螺旋桨
C.
燃油
D.
船员行李
查看完整题目与答案
【简答题】My name is Joe. Do you want to know about my hobby? I like music very much. There are many clubs in our school and I want to join the music club. Lisa and Linda are my friends. Lisa is a girl and she ...
查看完整题目与答案
【单选题】下列不属于船舶总载重量的是()
A.
螺旋桨
B.
备品
C.
固定压载
D.
船员行李
查看完整题目与答案
【简答题】4 Complete the sentences. Use the degree subject on the right to help you. ► He always wanted to be a lawyer . 1 She wants to be a ____. 2 When did he become an ____. 3 She’s studyin...
查看完整题目与答案
相关题目：
【简答题】My name is Joe. Do you want to know about my hobby? I like music very much. There are many clubs in our school and I want to join the music club. Lisa and Linda are my friends. Lisa is a girl and she ...
查看完整题目与答案
【单选题】下列不属于船舶总载重量的是 。
A.
螺旋桨
B.
备件
C.
固定压载
D.
船员行李
查看完整题目与答案
【多选题】以下属于创业的一般条件的是( )
A.
资金
B.
市场
C.
环境
D.
关系
查看完整题目与答案
【单选题】60下列不属于船舶总载重量的是:
A.
螺旋桨
B.
备品
C.
固定压载
D.
船员行李
查看完整题目与答案
【单选题】A lot of people as well as the president of the animal protection association ____________ experiments on animals.
A.
are opposed to do
B.
oppose to doing
C.
is opposed to doing
D.
oppose doing
查看完整题目与答案
【多选题】高校性骚扰发生概率大的原因有
A.
侵犯者有社会角色做掩护外
B.
权利太大
C.
监督太少
D.
学生不敢、无力反抗
查看完整题目与答案
【单选题】下列不属于船舶总载重量的是
A.
备品
B.
螺旋桨
C.
燃油
D.
船员行李
查看完整题目与答案
【简答题】My name is Joe. Do you want to know about my hobby? I like music very much. There are many clubs in our school and I want to join the music club. Lisa and Linda are my friends. Lisa is a girl and she ...
查看完整题目与答案
【单选题】下列不属于船舶总载重量的是()
A.
螺旋桨
B.
备品
C.
固定压载
D.
船员行李
查看完整题目与答案
【简答题】4 Complete the sentences. Use the degree subject on the right to help you. ► He always wanted to be a lawyer . 1 She wants to be a ____. 2 When did he become an ____. 3 She’s studyin...
查看完整题目与答案
参考解析：
知识点：
题目纠错 0
发布
创建自己的小题库 - 刷刷题