【判断题】【消耗次数：1】
Poisson分布的总体均数与方差相等
①
正确
②
错误
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相关题目
【单选题】
总体均数95%可信区间表示
①
总体中95%的个体值在该区间内
②
样本中有95%的个体值在该范围内
③
平均100个总体均数中有95个在该区间内
④
该总体中样本含量相同的样本，有95%的样本均数在该区间内
⑤
从该总体中，抽取样本含量相同的样本，有95%样本均数可得出该区间
【单选题】
总体均数95%可信区间的含义是指
①
某指标可能的取值范围
②
95%样本均数在此范围内
③
总体均数有95%的可能性落在这个范围
④
正常人群某指标95%的观察值所在的范围
随机题目
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My teachers words ( ) me a lot in my decision making.
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assured
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accomplished
③
confronte
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influenced
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I’m thinking of buying a computer. Can you ( ) a good make to me?
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advise
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recommend
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propose
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suggest
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On the first day at work, he was ( ) with a difficult task.
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focused
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concentrated
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confronted
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possessed
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They are encouraged to be brave, independent and to （ ）the world on their own or with friends.
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explorative
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exploration
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explorer
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explore
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The authors great work has had a profound ( ) on me.
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effect
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assurance
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confidence
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evidence
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This kind of digital camera is considered the best that has been made ( )in our country.
①
so on
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so that
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so far
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so as
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There was much ( ) of the Presidents improper actions.
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influence
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criticism
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genius
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ability
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After the flood the first thing the local government did was to provide （ ）for the homeless families.
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accommodate
②
accommodator
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accommodation
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accommodative
【单选题】
Tom has the enough courage to ( ) any challenge in his life.
①
conform
②
confront
③
criticize
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concentrate
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Up to now we have ( )the goal we set at the very beginning.
①
assured
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influenced
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possessed
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accomplished