
英语的mean这个词有哪些用法? - 知乎
mean这个词有许多用法和含义,在不同的情境下有不同的解释和表达方式。 以下是一些常见的用法: 1. 表示某物或某人的意图、目的或动机。 例如: - What do you mean? 你是什么意思? …
Which "mean" to use and when? - Cross Validated
So we have arithmetic mean (AM), geometric mean (GM) and harmonic mean (HM). Their mathematical formulation is also well known along with their associated stereotypical …
如何正确使用 mean 这个单词?可否举例说明? - 知乎
Aug 7, 2012 · Mean在口语中更多的是“毒舌,刻薄,过分,坏”的意思。 -Cady: You're the one who made me like this so you could use me for your 8th grade revenge!
Difference in Means vs. Mean Difference - Cross Validated
Apr 29, 2015 · When studying two independent samples means, we are told we are looking at the "difference of two means". This means we take the mean from population 1 ($\\bar y_1$) and …
What is the significance of 1 SD? - Cross Validated
Nov 2, 2024 · What do you mean by "the derivative at 1 SD is +- 1"? Derivative of what? If you mean of a density plot, then what distribution? The normal? Different distributions will have …
standard deviation - Can I use 'mean ± SD' for non-negative data …
May 8, 2023 · "Can I use 'mean ± SD' for non-negative data when SD is higher than mean?" clearly you can (you already managed it in the question), the issue is more should you do so. …
What is the difference between Mean Squared Deviation and …
Oct 10, 2016 · I also guess that some people prefer using mean squared deviation as a name for variance because it is more descriptive -- you instantly know from the name what someone is …
probability - Why are mean 0 and standard deviation 1 …
The mean of 0 and standard deviation of 1 usually applies to the standard normal distribution, often called the bell curve. The most likely value is the mean and it falls off as you get farther …
Estimating mean and SD given the median and IQR values
Jul 15, 2024 · 5 it is possible to estimate mean and SD given the median and IQR? I am involved in a meta-analysis where some trials show outcomes as mean and standard deviation but …
Can the standard deviation of non-negative data exceed the mean?
For a familiar (to some) example, the mean result of someone playing blackjack for one hour might be negative \$25 but with a standard deviation of say $100 (numbers for illustration). …