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单选题

The uncertainty of an event is measured by its probability of occurrence and is inversely proportional to that. The more uncertain an event is. The more information is required to resolve uncertainty of that event. The amount of information is measured in ( ) .

A
possibility      
B
bits    
C
bps 
D
probability
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答案:

B

解析:

事件的不确定性是通过其发生的概率来衡量的,并且与概率成反比。越不确定的事件需要解决其不确定性的信息就越多。信息的数量是用位(bits)来衡量的。因此,正确答案是B。

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