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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(75) / 评论(0)
数学英语
This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in chemistry goes to Daniel Schechtman of the TechnionIsrael Institute of Technology in Haifa. Schechtman discovered what are called quasicrystals.
发表于:2019-01-08 / 阅读(72) / 评论(0)
Scientific American(十)月
4. Most striking among the many asymmetries evident in an adult flatfish is eye placement: before maturity one eye migrates,so that in an adult flatfish both eyes are on the same side of the head. (3+) 在一条成年比目鱼身上显著存在的诸
发表于:2019-02-01 / 阅读(47) / 评论(0)
GRE英语