Top 50+ Solved Corelation and Regression MCQ Questions Answer
Q. Which is a method of measuring correlation?________
a. Graphic correlation
b. Scatter diagrams
c. None of these
d. Both of these
Q. A scatter diagram is________
a. A statistical test
b. Linear
c. Curvilinear
d. A graph showing x and y values
Q. If there exists any relation between the sets of variables, it is called__________
a. Regression
b. Skewness
c. Correlation
d. All of these
Q. Perfect correlation is one Perfect correlation is one in which_________
a. Area of a circle is in definite constant relationship with radius
b. When area of the circle is ½ radius
c. None of these
d. All of these
Q. Which of the following measurement scales is required for the valid calculation of Karl Pearson’scorrelation coefficient?__________
a. Ordinal
b. Interval
c. Ratio
d. Nominal
Q. Which of the following point is not related with the utility of correlation?________
a. Relation between two variables
b. Help in decision making
c. Useful in research work
d. All of these
Q. Which of the following is not cause of the correlation?____________
a. Direct relationship
b. Correlation due to any other common cause
c. Mutual Reaction
d. None of these
Q. Which of the following is the highest range of r?__________
a. 0 and 1
b. -1 and 0
c. -1 and 1
d. None of these
Q. When the correlation coefficient between x and y is positive, then as variable x decreases, variable yRemains the same________
a. Increases
b. Decreases
c. Changes linearly
d. none
Q. Which of the following is most likely to be an inverse relationship?__________
a. Between income and expenditure on education
b. Between price increase and demand for a certain product
c. Between average number of hours studied per day and the performance of the students in the examination
d. Between advertising expenditure and sales of a product.
Q. Which of the following measurement scales is required for the valid calculation of spearman correlationcoefficient?_____________
a. Ordinal
b. Interval
c. Nominal
d. Ratio
Q. The ratio of the average deviations is called__________
a. Regression
b. Correlation
c. Skewness
d. All of these
Q. What will be the range of r when we find that the dependent variable increases as the independent variableincreases?__________
a. 0 to -0.05
b. 1 to 2
c. 0 .1 to 1
d. None of these
Q. Which of the following is true if the estimating equation has to be a perfect estimator of the dependentvariable?______________
a. The coefficient of determination is -1
b. All the data points are on the regression line.
c. The standard error of the estimate is zero
d. B and C
Q. Regression modeling is a statistical framework for developing a mathematical equation that describes how __________
a. one explanatory and one or more response variables are related
b. several explanatory and several response variables response are related
c. one response and one or more explanatory variables are related
d. All of these are correct.