If rxy is positive the relation between X an Y is of the type:
When Y increases X increases
When Y decreases X increases
When Y increases X does not change
B.
When Y decreases X increases
If rxy = 0 the variable X and Y are:
Linearly related
Not linearly related
Independent
C.
Independent
The range of simple correlation coefficient is:
0 to infinity
Minus one to plus one
Minus infinity to infinity
B.
Minus one to plus one
Of the following three measures which can measure any type of relationship:
Karl Pearson’s coefficient of correlation
Spearman’s rank correlation
Scatter diagram
C.
Scatter diagram
The unit of correlation coefficient between height in feet and weight in kgs is:
kg/feet
percentage
non-existent
C.
non-existent