设随机变量X服从分布E(1)，记Y=min|X|，1，则Y的数学期望E(Y)=___
题型：填空题
问题：
设随机变量X服从分布E(1)，记Y=min|X|，1，则Y的数学期望E(Y)=______．
题型：填空题
| 阅读理解，填表。 | ||||||||||
| It's a fine Sunday morning. Ann and her mother are in a big bus. There are many people in it. Some of them come from America, and some come from England and Canada. They are all their friends. T  heyare going to the Great Wall . There are two Chinese in the bus. One is a woman. She is driving the bus. The other is a young man. He speaks good English. He is now talking about the Great Wall. The other people are all listening to him. They like the Great Wall. They want to see it very much. | ||||||||||
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