'Average, Deviation, and Standard Deviation In experimental chemistry we generally determine the value of a measured quantity by repeated measurement. We assume that any errors in our measurements are random, meaning that it is equally likely that our measured results will be higher or lower than...
Therefore the standard deviation of 250 cycles is converted to 1.25 year. legco.gov.hk 因此,經換算後,250次循環的標準誤 差相當於1.25年壽命。 legco.gov.hk But Chairman, if we look at the average, the difference or deviation may be enormous. What we consider most worrying is [...]...
Average, Deviation, and Standard Deviation In experimental chemistry we generally determine the value of a measured quantity by repeated measurement. We assume that any errors in our measurements are random, meaning that it is equally likely that our measured results will be higher or lower than th...
Power is proportional to the square of voltage or current, and consequently all we need to do is square the difference term before summation and averaging. This procedure results in a statistical measure called variance, denoted by σ2 (pronounced as “sigma squared”): σ2=1N−...
average standard deviation 英[ˈævəridʒ ˈstændəd ˌdi:vi:ˈeɪʃən]美[ˈævərɪdʒ ˈstændəd ˌdiviˈeʃən]释义 常用 牛津词典 释义 [医]平均标准偏差;拍照翻译 语音翻译 智能背词 下载金山词霸APP...
Standard Deviation, also called mean square error, is various data deviation mean value distance mean value, it is after the divided difference sum of squares average root, with sigma expressed.The standard deviation is the variance arithmetic square root.The standard deviation can reflect a data ...
Calculate the difference between the mean and each data point. Calculate the average of the absolute values of those differences. Standard Deviation Versus Average Deviation Standard deviation is often used to measure the volatility of returns from investment funds or strategies because it can help mea...
就是 （计算的样本对象 减去 总体期望） 再除以 总体标准差。公式表示样本在总体中的位置。z-score=0表示恰好处于总体正态分布的中央位置，数值恰好等于数学期望。z-score=1就表示你问的“1 standard deviation above the average score”了...相当于“计算对象比数学期望高出一个标准差”的意思。其实...
explain what“1 standard deviation above the average score"means。能用英语回答就更好了, 相关知识点: 试题来源: 解析 "1 standard deviation above the average score" means that the observation value minus the population mean just equals to 1 standard deviation.The average score is the population ...
Standard deviation measures _. A. the average value of a data set B. the spread or dispersion of a data set C. the middle value of a data set D. the number of values in a data set 相关知识点: 试题来源: 解析 B。解析:标准差衡量数据集的分散程度或离散程度。选项 A,是均值的作用。