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【简答题】
设随机变量X的概率密度为 ，其中c＞0，求函数Y=X 2 的概率密度f Y (y)．
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【单选题】Which of these types of costs can be ignored when an individual or a firm is making decisions?
A.
sunk costs
B.
marginal costs
C.
variable costs
D.
opportunity costs
【判断题】When an individual creating an advertisement takes an idea and transforms it into an ad, the process is known as decoding in a communications model.
A.
正确
B.
错误
【单选题】A century ago in the United States, when an individual brought suit against a company, public opinion tended to protect that company. But perhaps this phenomenon was most striking in the case of the r...
A.
Farwell was injured because he negligently ran his engine off the track.
B.
Farwell would not have been injured if the switchman had been more careful.
C.
The court argued that the victim had accepted the risk since he had willingly taken his job.
D.
The court decided that the railroad should not be held responsible.
【简答题】E A century ago in the United States, when an individual brought suit against a company, public opinion tended to protect th at company. But perhaps this phenomenon was most striking in the case of th...
【单选题】根据以下内容回答题： It is well known that when an individual joins a group he tends to accept the group’s stand-ards of behavior. and thinkin9．He is expected to behave in accordance with these norms——in other ...
A.
how far group pressure can influence people’s judgments
B.
how to make judgments according to everyday experience
C.
how to change people’s judgments
D.
the group’s standards of social behavior
【单选题】A century ago in the United States, when an individual brought suit against a company, public opinion tended to protect that company. But perhaps this phenomenon was most striking in the case of the r...
A.
Farrell was injured because he negligently ran his engine off the track.
B.
Farrell would not have been injured if the switchman had been more careful.
C.
The court argued that the victim had accepted the risk since he had willingly taken his job.
D.
The court decided that the railroad should not be held responsible.
【单选题】1 A century ago in the United States, when an individual brought suit against a company, public opinion tended to protect that company. But perhaps this phenomenon was most striking in the case of the...
A.
Farwell was injured because he negligently ran his engine off the track.
B.
Farwell would not have been injured if the switchman had been more careful.
C.
The court argued that the victim had accepted the risk since he had willingly taken his job.
D.
The court decided that the railroad should not be held responsible.
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