(WA-MM) Not long ago, some of you may have read about a team of mountain-climbing scientists who helped to recalculate the elevation of the highest mountain in the world: Mt. Everest. Of course, the elevation of Mt. Everest was determined many years

发表于:2018-12-30 / 阅读(43) / 评论(0) 分类 托福听力短文

by Jason Marshall In the last article, we talked about averages and one specific way statistics can help answer questions without letting emotions interfere. But the type of average value we talked about is just one of manyuseful meanings assigned to

发表于:2019-01-02 / 阅读(102) / 评论(0) 分类 数学英语

图片1 图片2 by Jason Marshall A few articles ago, I asked if you ever found yourself at restaurants fumbling to figure out how much to tip; I guessed that you might occasionally resort to seeking advice from your smart phone; and I told you that

发表于:2019-01-02 / 阅读(106) / 评论(0) 分类 数学英语

by Jason Marshall In the last article, we learned that there are several ways to calculate the average value of a sample of data. We focused on one such method, the arithmetic mean, and used it to calculate the average number of potato chips in a bag

发表于:2019-01-02 / 阅读(109) / 评论(0) 分类 数学英语

by Jason Marshall In the last two articles weve learned how to calculate two types of average values: the mean and the median. Today, were going to continue where we left off and talk about how median averaging can be useful in everyday, real life si

发表于:2019-01-02 / 阅读(111) / 评论(0) 分类 数学英语

Over one's head Over the hump 大家肯定都很熟悉英文里的over这个字。Over is spelt: 0-V-E-R. Over的意思是:在上面,但是这个字在不同场合有不同的意思。今天我们要

发表于:2019-01-30 / 阅读(85) / 评论(0) 分类 美国习惯用语