Basic Statistics and Data Analysis

Statistics Lecture Notes, Online MCQs

MCQs Correlation and Regregression 3

by · Published · Updated

This quiz is about MCQs Regression and Correlation analysis.

This Section contains MCQs on Correlation Analysis, Simple Regression Analysis, Multiple Regression Analysis, Coefficient of Determination (Explained Variation), Unexplained Variation, Model Selection Criteria, Model Assumptions, Interpretation of results, Intercept, Slope, Partial Correlation, Significance tests, OLS Assumptions, Multicollinearity, Heteroscedasticity, and Autocorrelation, etc. Let us start MCQ on Correlation and Regression Analysis

MCQs about Correlation and Regression Analysis

1. A perfect negative correlation is signified by

 
 
 
 

2. In the regression line $Y=a+bX$ the following is always true

 
 
 
 

3. If $b_{yx} <0$ and $b_{xy} =<0$, then $r$ is

 
 
 
 

4. When two regression coefficients bears same algebraic signs, then correlation coefficient will be

 
 
 
 

5. Coefficient of Correlation values lies between

 
 
 
 

6. If $r_{xy} = -0.84$ then $r_{yx}=?$

 
 
 
 

7. The Coefficient of Correlation between $U=X$ and $V=-X$ is

 
 
 
 

8. If $\hat{Y}=a$ then $r_{xy}$?

 
 
 
 

9. In the regression line $Y=a+bX$

 
 
 
 

10. In Correlation, both variables are always

 
 
 
 

11. When $b_{xy}$ is positive, then $b_{yx}$ will be

 
 
 
 

12. If $X$ and $Y$ are independent of each other, the Coefficient of Correlation is

 
 
 
 

13. If $r=0.6, b_{yx}=1.2$ then $b_{xy}=?$

 
 
 
 

14. The Coefficient of Correlation between $X$ and $X$ is

 
 
 
 

15. Regression coefficient is independent of

 
 
 
 

16. It is possible that two regression coefficients have

 
 
 
 

17. Two regression lines are parallel to each other if their slope is

 
 
 
 

18. The Coefficient of Correlation $r$ is independent of

 
 
 
 

19. When the regression line passes through the origin then

 
 
 
 

20. If two variables oppose each other then the correlation will be

 
 
 
 

Correlation is a statistical measure used to determine the strength and direction of the mutual relationship between two quantitative variables. The regression describes how an explanatory variable is numerically related to the dependent variables.

Both of the tools are used to represent the linear relationship between the two quantitative variables. The relationship between variables can be observed either using graphical representation between the variables or numerical computation using appropriate computational formula.

MCQ Correlation and Regression

Note that neither regression nor correlation analyses can be interpreted as establishing some cause-and-effect relationships. Both of these can be used to indicate only how or to what extent the variables under study are associated (or mutually related) with each other. The correlation coefficient measures only the degree (strength) and direction of linear association between the two variables. Any conclusions about a cause-and-effect relationship must be based on the judgment of the analyst.

Tags:

Muhammad Imdad Ullah

Currently working as Assistant Professor of Statistics in Ghazi University, Dera Ghazi Khan. Completed my Ph.D. in Statistics from the Department of Statistics, Bahauddin Zakariya University, Multan, Pakistan. l like Applied Statistics, Mathematics, and Statistical Computing. Statistical and Mathematical software used is SAS, STATA, GRETL, EVIEWS, R, SPSS, VBA in MS-Excel. Like to use type-setting LaTeX for composing Articles, thesis, etc.

You may also like...

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.