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【简答题】
某企业有甲、个投资项目,计划投资额均为 1000 万元,其收益率的概率分布如下表所示: 市场状况 概率 甲项目 乙项目 好 0.3 20% 30% 一般 0.5 10% 10% 差 0.2 5% -5% 要求: ( 1 )计算甲 个项目收益率的期望值。(以百分数形式写出答案) (2) 计算 个项目收益率的期望值。 (以百分数形式写出答案) (3 )计算甲两个项目收益率的标准差。( 以百分数形式写出答案,并保留两位小数) (4) 计算个项目收益率的标准差。 ( 以百分数形式写出答案,并保留两位小数) (5 )如果无风险收益率为 6 %,甲项目的风险价值系数为 10 %,计算甲项目投资的总收益率。 ( 以百分数形式写出答案,并保留两位小数)
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【简答题】除法运算用________表示,求余数运算用________表示。
【单选题】Good Table Manners
Manners play an important part in making a favorable impression at the dinner table. Here are some general rules： Napkin （餐巾） use
The meal begins when the host unfolds his or her ...
A.
Talking with your mouth full
B.
Putting bones on your plate
C.
Putting your elbows on the table
D.
Chewing with your month open
【简答题】Good Table Manners
Manners play an important part in a favorable impression at the dinner table. Here are some general rules： Napkin （餐巾） use
The meal begins when the host unfolds his or her ...
【单选题】Good Table Manners
Manners play an important part in making a favorable impression at the dinner table. Here are some general rules： Napkin （餐巾） use
The meal begins when the host unfolds his or her ...
A.
On your chair
B.
On the table
C.
On your lap
D.
On your plate
【单选题】Good Table Manners
Manners play an important part in making a favorable impression at the dinner table. Here are some general rules： Napkin （餐巾） use
The meal begins when the host unfolds his or her ...
A.
your forehead
B.
your mouth
C.
your nose
D.
your face
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