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[请教] 2个概率论与数理统计学小问题
(1)请问 mean value ≡ mean ≡ mathematical expectation 吗?
概率论与数理统计学里,英文 mean value 、 mean 、 mathematical expectation 完全可以互换吗?
或者说,这3个词,在含义上是否完全等价?就是常和方差 variance 一起出现的“均值/数学期望”。
即: mean value ≡ mean ≡ mathematical expectation ?
此外,average value 是什么意思?
我们的论文里同时出现“均值mean”和“平均误差mean error”,审稿专家要我们解决这个confusing。具体该怎么处理?
平均误差mean error,通常关联均方根(root mean square)。
参考链接:
[1] Mathematical expectation - Encyclopedia of Mathematics
http://www.encyclopediaofmath.org/index.php/Mathematical_expectation
(2)请教“第一篇关于时间序列预测”的文献
在论文 Tsay RS. 2000. Time series and forecasting: Brief history and future research. Journal of the American Statistical Association 95(450): 638-643.
中提到 “Statistical analysis of time series data started a longu time ago (Yule 1927), and forecasting has an even longer history.”
请教下述文献是否是第一篇时间序列预测的文献?
G. Udny Yule. On a Method of Investigating Periodicities in Disturbed Series, with Special Reference toWolfer's Sunspot Numbers[J]. Philosophical Transactions of the Royal Society of London. Series A, Containing Papers of a Mathematical or Physical Character, 1927, Vol. 226 pp. 267-298.
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