平均偏差百分率

数学英语 23 What are the Range and Standard Deviation?

by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?

发表于:2018-12-07 / 阅读(72) / 评论(0)

数学英语

数学英语 28 How to Use Statistics to Understand Poll Resu

by Jason Marshall In todays article, were wrapping-up our introductory series on fundamental statistics by talking about how knowledge of statistical quantities like the mean and standard deviation can help you understand the significance of the late

发表于:2018-12-07 / 阅读(29) / 评论(0)

数学英语

北师大版高中英语模块7--Unit 24 warm-up1

[00:02.17]Unit 24 Society Warm-up [00:05.98]Exercise 2 Listen to a radio news report [00:10.24]about changes in British society. [00:13.23]Match the topics with the graphs below. [00:17.35]A recent report on British society [00:19.50]has shown that m

发表于:2019-01-10 / 阅读(103) / 评论(0)

北师大版高中英语模块8(选修)

TED演讲 :老兵为何恋战(3)

Young men will go to great lengths, 年轻人对这种刺激。 to have that experience. 的感受更加深刻。 It's wired into us. 这种感觉输入到我们体内。 It's hormonally supported. 伴随着激素的作用。 The mortality rate for y

发表于:2019-01-18 / 阅读(50) / 评论(0)

TED演讲娱乐篇

缅甸历史性大选投票开始

Millions of voters are streaming to the polls across Myanmar in the first relatively free election in a quarter of a century. Voters had lined up long before the polls opened Sunday to cast their ballots. The chief EU election observer in the country

发表于:2019-02-04 / 阅读(57) / 评论(0)

英语新闻

新西兰英语 381 Growing Up in New Zealand

This month we saw some early results from a study of small children. The full report is at Growing Up in NZ About 7,000 children, born between April 2009 and March 2010, are in the study. They live in Waikato, or a particular area in Auckland. This i

发表于:2019-02-08 / 阅读(24) / 评论(0)

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