
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? - I mean to …
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 examples (e.g., Harmonic mea...
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 different …
standard deviation - Can I use 'mean ± SD' for non-negative data when ...
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. However, what is …
What is the difference between Mean Squared Deviation and Variance?
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 talking …
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 most show …
probability - Why are mean 0 and standard deviation 1 distributions ...
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 away.
Can someone explain the importance of mean stationarity in time …
Jun 1, 2020 · In fact we generally use regression when we want to model this change in conditional mean. I am not understanding why in time series, we want our series to be mean stationary. I get the …