关于统计的英文题
Suppose the correlation coefficient between two variables is found to be -0.19.Which of the following statements are true?
Answer
there is a slight tendency for small values of one variable to be associated with large values of the other variable
there can be no relationship between the variables
a scatter plot of the points would show some downward trend
there is a slight tendency for low values of one variable to be paired with low values of the other variable
there is a strong negative relationship between the variables
one variable causes a small change in the other variable
there may be a negative linear association between the variables,though this is very weak
answer下面的是选项
一共是7个选项