When there is perfect correlation, the value of the correlation coefficient is:

Related MCQs

• In case there is no relation between the variables, value of coefficient of correlation will be:
• As the value of X increases, if value of Y decreases, then coefficient of correlation will be
• Karl Pearson’s coefficient of correlation method of measuring correlation is
• If b1 and b2 are the regression coefficient of Y on X and that of X on Y respectively and r is the correlation coefficient between X and Y then:
• The value of the correlation coefficient lies between:
• As the value of X increases, if Y also increases, then coefficient of correlation will be
• Vertical curve represent the value of correlation coefficient to be
• Horizontal curve represents the value of coefficient of correlation to be
• When the correlation coefficient r = ±1, the two regression lines:
• The correlation coefficient between X and Y will have positive sign when