
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...
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 …
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 …
Finding the Mean and Variance from PDF - Cross Validated
Jan 15, 2015 · You can solve for the mean and the variance anyway. See, for example, mean and variance for a binomial (use summation instead of integrals for discrete random variables). If you …
Can mean plus one standard deviation exceed maximum value?
I have mean 74.10 and standard deviation 33.44 for a sample that has minimum 0 and maximum 94.33. My professor asks me how can mean plus one standard deviation exceed the maximum. I showed …
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 …
Mean absolute deviation vs. standard deviation - Cross Validated
Jan 13, 2014 · After calculating the "sum of absolute deviations" or the "square root of the sum of squared deviations", you average them to get the "mean deviation" and the "standard deviation" …
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.
怎么理解running mean和running variance? - 知乎
怎么理解running mean和running variance? Batch Normalization的running mean和running variance是什么? 显示全部 关注者 8
mean - Is it correct to use plus or minus symbol before standard ...
Apr 21, 2015 · I have represented standard deviation as "±SD" before in publications. But I like to have opinions on this. Is it appropriate to use the notation '±' with SD ? Or ...