李同学2019-02-03 14:37:18

Under which condition that the coefficient of variation is useful to determine the relative degree of variability of different data sets? The data sets have different: A Means, but not different units of measurement. B Units of measurement, but not different means. C Means or different units of measurement. 查看解析 上一题 下一题 正确答案C 您的答案B本题平均正确率：42% Chebyshev’s inequality, CV&sharpe ratio难度：一般 推荐：      答案解析 The coefficient of variation is a relative measure of risk (dispersion) and is useful for both data sets that have different means and for data sets that do not have the same unit of measurement. 请问：如果说 剔除了 单位，那么 长度和温度可以进行比较吗？我的意思是一个是衡量长度的变异系数 一个是衡量温度的变异系数，这两种东西可以进行比较？