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  1. 均值 (mean)和平均值 (average)的区别? - 知乎

    均值 (mean)是对恒定的真实值进行测量后,把测量偏离于真实值的所有值进行平均所得的结果; 平均值 (average)直接对一系列具有内部差异的数值进行的测量值进行的平均结果。均值是“ 观 …

  2. 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? …

  3. 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 …

  4. Difference in Means vs. Mean Difference - Cross Validated

    Apr 29, 2015 · the distribution of the mean difference should be tighter then the distribution of the difference of means. See this with an easy example: mean in sample 1: 1 10 100 1000 mean …

  5. What is implied by standard deviation being much larger than the …

    What does it imply for standard deviation being more than twice the mean? Our data is timing data from event durations and so strictly positive. (Sometimes very small negatives show up …

  6. When do we use S.E.M. and when do we use S.D.?

    Feb 24, 2018 · I disagree with Wiki's use of the term "population mean". I believe they mean "null hypothesized mean". That's not even a necessary concept, since a CI can be constructed …

  7. How to read scientific notation output (numbers that include "e")?

    Dec 20, 2017 · What does the notation like 8.6e-28 mean? What is the 'e' for? (2 answers) Closed 7 years ago. After running the lm regression model using R, sometime one is bound to get …

  8. 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 …

  9. What is the difference between "mean value" and "average"?

    The mean you described (the arithmetic mean) is what people typically mean when they say mean and, yes, that is the same as average. The only ambiguity that can occur is when …

  10. Explaining Mean, Median, Mode in Layman's Terms

    Mar 7, 2016 · How would you explain the concept of mean, median, and mode of a list of numbers and why they are important to somebody with only basic arithmetic skills? Let's not mention …