Top 150+ Solved Quantitative Methods for Economic Analysis 2 MCQ Questions Answer
Q. When the correlation coefficient r = ±1, the two regression lines:
a. are perpendicular to each other
b. are parallel to each other
c. coincide
d. do not exist
Q. The correlation coefficient between X and Y will have positive sign when
a. x is increasing, y is decreasing
b. both x and y are increasing
c. x is decreasing, y is increasing
d. there is no change in x and y
Q. The value of the correlation coefficient lies between:
a. 0 and 1
b. -1 and +1
c. -30 and +3
d. none of these
Q. If one of the regression coefficients is greater than 1, then the other must be:
a. greater than 1
b. equal to 1
c. less than 1
d. zero
Q. The coefficient of correlation:
a. always positive
b. always negative
c. cannot be negative
d. can be both positive and negative
Q. Relation between two variables is determined by
a. dispersion
b. mean
c. correlation
d. regression
Q. Coefficient of correlation measure
a. direction of the relation
b. degree of the relation
c. both (a) and (b)
d. none of the above
Q. As the value of X increases, if Y also increases, then coefficient of correlation willbe
a. positive
b. negative
c. zero
d. none of the above