[数] 最小平方极大似然估计值

数学英语 41 What are Statistics and Estimators?

by Jason Marshall Sometimes statistics* seems magical. Of course, there isnt really anything magical going onbut the fact that statistical methods can be used to pull useful information out of a hatful of messy data is, at a minimum, remarkable. And,

发表于:2018-12-07 / 阅读(157) / 评论(0)

数学英语

Break record

发表于:2018-12-15 / 阅读(162) / 评论(0)

自考英语（一）78讲

‘maximum INDIA’ Brings India’s Sights and Sounds to Was

STEVE EMBER: Im Steve Ember. SHIRLEY GRIFFITH: And Im Shirley Griffith with EXPLORATIONS in VOA Special English. Today we travel to India by way of the John F. Kennedy Center for the Performing Arts in Washington, D.C. This cultural organization is c

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2011年VOA慢速英语(三)月

英语口语每天说028

028 possibility and impossibility 1. In all likelihood, I think this teem will win. 2. There is no likelihood of his coming again. 3. It seems hardly likely that they will agree with you. 4. I guess hell fail the exam. 5. Is there any possibility of

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英语口语每天说

VOA英语教学：美语训练班 085

A: 欢迎大家来到这期的美语训练班! 我是杨琳! B: 我是Mike! 杨琳，来告诉大家今天都要学什么? A: 没问题! 今天我们要聊聊神秘的直觉，看看在美国如何闪购，还要告诉你怎么说有商有量! B: Yea

发表于:2018-12-25 / 阅读(99) / 评论(0)

美语训练班

趣味青春英语电台第134期:Off the record

Idiom: Off the record 非正式的，不记录下来的事 Hit the book: Likelihood Strain Incorporate Well-being Complement Be consistent with Hypothesis

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趣味青春英语

有声读物《孙子兵法》第48期:第八章九变(4)

九变篇 NO.4：故用兵之法，无恃其不来，恃吾有以待之；无恃其不攻，恃吾有所不可攻也。这句啥意思：所以用兵的原则是：不抱敌人不会来的侥幸心理，而要依靠我方有充分准备，严阵以

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孙子兵法

越狱第一季:第四十二期

[00:42.04]T-Bag [00:43.08]PI [00:52.73]T-Bag [01:15.29]Pardon me for interrupting. [01:17.76]But, what's that smell? [01:26.15]It smells a little like conspiracy. [01:29.47]We need to get back to work. [01:30.44]Yeah, before you do, [01:31.22]I have

发表于:2019-01-01 / 阅读(165) / 评论(0)

越狱第一季

Alien contact

Rob: Hello! Im Rob and this is 6 Minute English. Im joined today byAlice. Hello Alice. Alice: Hi Rob. Rob: Today, were talking about alien life form and who on planet earth wouldaliens speak to if they one day made contact? Alice: Alien life form. Th

发表于:2019-01-07 / 阅读(295) / 评论(0)

六分钟英语

CNN 2010-06-13

This is bigger than the Super Bowl. This is actually bigger than the Olympics. This is really a big deal for Africa, but its also a big deal for the United States. Because you know they really have something to prove. Much of the world sees them real

发表于:2019-01-08 / 阅读(163) / 评论(0)

CNN2010年(六)月

极端干旱天气与艾滋病传播的关系

AS IT IS 2015-07-07 Extremely Dry Weather Raises HIV Risk 极端干旱天气与艾滋病传播的关系 Could saving money reduce the spread of HIV, the human immunodeficiency virus? A new study finds protecting people from financial hardship may red

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2015年VOA慢速英语(七)月

奥运会主席:寨卡病毒不会影响里约奥运会进程

AS IT IS 2016-07-01 Olympic Chief: Zika Not Top Concern at Rio Games 奥运会主席:寨卡病毒不会影响里约奥运会进程 Excitement is building for the 2016 Summer Olympics. The opening ceremony will take place in Rio de Janeiro, Brazil, on

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2016年VOA慢速英语(七)月

英语新词:这些hood后缀单词你理解对了么?

英语新词:这些hood后缀单词你理解对了么? boyhood n. 童年，少年时代；男孩们。 brotherhood n. 兄弟关系；手足情谊；四海之内皆兄弟的信念。 childhood n. 童年时期；幼年时代。 falsehood n. 说谎；假

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英文语法词汇

英语口试要诀的例题分析

英语口语在英语考试中占总分的百分之三十,这一部分有一定的难度，而临场发挥得好坏对于总成绩关系很大。现以一篇往年试题略加分析，帮助大家提高即兴的口头表达能力。首先是审题要正

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实用英语

2007年VOA标准英语-India Lowers Estimate of HIV, AIDS Infections

By Steve Herman New Delhi 17 August 2007 India was once thought to have the world's highest number of people with HIV -- the virus that causes AIDS. But the estimate was recently reduced by more than half -- down to 2.5 million from 5.7 million. The

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2007年VOA标准英语（八月）

2007年VOA标准英语-Intelligence Estimate Says al-Qaida Intends to

By Gary Thomas Washington 17 July 2007 A new U.S. intelligence estimate says al-Qaida remains determined to mount attacks on major targets in the United States, especially if it can acquire weapons of mass destruction. VOA correspondent Gary Thomas r

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2007年VOA标准英语（七月）

学个词Learn a Word 第1626-likelihood

今天我们要学的词是 likelihood. Likelihood 可能性。美国西维吉尼亚州连续六年，一直是开车最容易撞到鹿的州。The likelihood of a West Virginian driver to hit a deer is 1 in 68. 西维吉尼亚州有驾照的人，每

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英语单词荟萃

20 top predictions for life 100 years from now

20 top predictions for life 100 years from now Last week we asked readers for their predictions of life in 100 years time. Inspired by ten 100-year predictions made by American civil engineer John Elfreth Watkins in 1900, many of you wrote in with yo

发表于:2019-02-05 / 阅读(282) / 评论(0)

阅读空间

商业书信的十点注意事项

1．切忌主客不分或模糊。例子： Deciding to rescind the earlier estimate， our report was updated to include $40，000 for new equipment．应改为 Deciding to rescind our earlier estimate， we have updated our report to include $40，

发表于:2019-02-06 / 阅读(134) / 评论(0)

英语作文

最容易的减肥瘦身方式:自愿罚站吧!

Recent research compare the sedentary behaviour to smoking, warning it could slash years from your lifespan. Now, researchers at the University of Texas, have added their weight to the argument. They found standing for up to six hours a day, can cut

发表于:2019-02-18 / 阅读(126) / 评论(0)

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bomb damage assessment

bunked down