The proportion of one variable in the total D. The average of a set of data 相关知识点: 试题来源: 解析 A。相关系数(correlation coefficient)在统计学中衡量两个变量之间关系的强度和方向。选项 B 中“the difference between two sets of data”指的是两组数据的差异;选项 C 中“the proportion of...
Specifically, the correlation coefficient (r) is the statistical measure of a potential linear association between two continuous factors or variables... Learn more about this topic: Statistical Methods in Psychology | Descriptive & Inferential
Given the following data what is the correlation coefficient between the two stocks and the Beta of stock A standard deviation of returns of Stock A is 10.04 percent standard deviation of returns of Stock B is 2.05 percent standard deviation of the market is 3.01 percent covariance between the ...
A. An outlier will always decrease a correlation coefficient. B. An outlier will always increase a correlation coefficient. C. An outlier might either decrease or increase a correlation coefficient, depending on where it is in relation to the other points. D. An outlier will have no effect on...
A. There is a strong negative correlation. B. There is a weak positive correlation. C. There is a strong positive correlation. D. There is no correlation. 相关知识点: 试题来源: 解析 C。相关系数在 0 到 1 之间表示正相关,接近 1 表示强正相关。本题中相关系数为 0.8,说明有强正相关关系。
The correlation coefficient is like watching a flock of birds… Some will stay in tight formation (be highly correlated); some will stray further afield (be only weakly correlated). Some may fly in the complete opposite direction (be negatively correlated). ...
When we measure the relationship between two variables, we may find that the change in the variables are related. The correlation coefficient measure how strong or weak this relationship is. However, it cannot tell us whether or not causation occurs. ...
Although partial correlation is a correlation of residuals, the correlation of the true-score components of these residuals is not equivalent to the partial correlation of the true scores themselves. The source of this discrepancy is explained and its implications are briefly discussed....
The correlation coefficient is a statistical measure of the strength of the relationship between two data variables.
A perfectpositive correlationmeans that the correlation coefficient is exactly 1. This implies that as one security moves, either up or down, the other security moves in lockstep, in the same direction. A perfectnegative correlationmeans that two assets move in opposite directions, while a zero c...