1. |
## The techniques which provide the decision maker a systematic and powerful means of analysis to explore policies for achieving predetermined goals are called.......................... |

A. | Correlation techniques |

B. | Mathematical techniques |

C. | Quantitative techniques |

D. | None of the above |

Answer» C. Quantitative techniques |

2. |
## Correlation analysis is a .............................. |

A. | Univariate analysis |

B. | Bivariate analysis |

C. | Multivariate analysis |

D. | Both b and c |

Answer» D. Both b and c |

3. |
## If change in one variable results a corresponding change in the other variable, then the variables are......................... |

A. | Correlated |

B. | Not correlated |

C. | Any of the above |

D. | None of the above |

Answer» A. Correlated |

4. |
## When the values of two variables move in the same direction, correlation is said to be ............................ |

A. | Linear |

B. | Non-linear |

C. | Positive |

D. | Negative |

Answer» C. Positive |

5. |
## When the values of two variables move in the opposite directions, correlation is said to be ............................ |

A. | Linear |

B. | Non-linear |

C. | Positive |

D. | Negative |

Answer» D. Negative |

6. |
## When the amount of change in one variable leads to a constant ratio of change in the other variable, then correlation is said to be ......................... |

A. | Linear |

B. | Non-linear |

C. | Positive |

D. | Negative |

Answer» A. Linear |

7. |
## ...........................attempts to determine the degree of relationship between variables. |

A. | Regression analysis |

B. | Correlation analysis |

C. | Inferential analysis |

D. | None of these |

Answer» B. Correlation analysis |

8. |
## Non-linear correlation is also called..................................... |

A. | Non-curvy linear correlation |

B. | Curvy linear correlation |

C. | Zero correlation |

D. | None of these |

Answer» B. Curvy linear correlation |

9. |
## Scatter diagram is also called ...................... |

A. | Dot chart |

B. | Correlation graph |

C. | Both a and b |

D. | None of these |

Answer» A. Dot chart |

10. |
## If all the points of a scatter diagram lie on a straight line falling from left upper corner to the right bottom corner, the correlation is called................... |

A. | Zero correlation |

B. | High degree of positive correlation |

C. | Perfect negative correlation |

D. | Perfect positive correlation |

Answer» C. Perfect negative correlation |

11. |
## If all the dots of a scatter diagram lie on a straight line falling from left bottom corner to the right upper corner, the correlation is called.................. |

A. | Zero correlation |

B. | High degree of positive correlation |

C. | Perfect negative correlation |

D. | Perfect positive correlation |

Answer» D. Perfect positive correlation |

12. |
## Numerical measure of correlation is called ..................... |

A. | Coefficient of correlation |

B. | Coefficient of determination |

C. | Coefficient of non-determination |

D. | Coefficient of regression |

Answer» A. Coefficient of correlation |

13. |
## Coefficient of correlation explains: |

A. | Concentration |

B. | Relation |

C. | Dispersion |

D. | Asymmetry |

Answer» B. Relation |

14. |
## Coefficient of correlation lies between: |

A. | 0 and +1 |

B. | 0 and –1 |

C. | –1 and +1 |

D. | – 3 and +3 |

Answer» C. –1 and +1 |

15. |
## A high degree of +ve correlation between availability of rainfall and weight of weight of people is: |

A. | A meaningless correlation |

B. | A spurious correlation |

C. | A nonsense correlation |

D. | All of the above |

Answer» D. All of the above |

16. |
## If the ratio of change in one variable is equal to the ratio of change in the other variable, then the correlation is said to be ..................... |

A. | Linear |

B. | Non-linear |

C. | Curvilinear |

D. | None of these |

Answer» A. Linear |

17. |
## Pearsonian correlation coefficient if denoted by the symbol ............... |

A. | K |

B. | r |

C. | R |

D. | None of these |

Answer» C. R |

18. |
## If r= +1, the correlation is said to be ................... |

A. | High degree of +ve correlation |

B. | High degree of –ve correlation |

C. | Perfect +ve correlation |

D. | Perfect –ve correlation |

Answer» C. Perfect +ve correlation |

19. |
## If the dots in a scatter diagram fall on a narrow band, it indicates a ....................... degree of correlation. |

A. | Zero |

B. | High |

C. | Low |

D. | None of these |

Answer» B. High |

20. |
## If all the points of a dot chart lie on a straight line vertical to the X-axis, then coefficient of correlation is ................... |

A. | 0 |

B. | +1 |

C. | –1 |

D. | None of these |

Answer» A. 0 |

21. |
## If all the points of a dot chart lie on a straight line parallel to the X-axis, it denotes .................................of correlation. |

A. | High degree |

B. | Low degree |

C. | Moderate degree |

D. | Absence |

Answer» D. Absence |

22. |
## If dots are lying on a scatter diagram in a haphazard manner, then r = ...................... |

A. | 0 |

B. | +1 |

C. | –1 |

D. | None of these |

Answer» A. 0 |

23. |
## The unit of Coefficient of correlation is ........................ |

A. | Percentage |

B. | Ratio |

C. | Same unit of the data |

D. | No unit |

Answer» D. No unit |

24. |
## Product moment correlation method is also called ........................ |

A. | Rank correlation |

B. | Pearsonian correlation |

C. | Concurrent deviation |

D. | None of these |

Answer» B. Pearsonian correlation |

25. |
## The –ve sign of correlation coefficient between X and Y indicates............................. |

A. | X decreasing, Y increasing |

B. | X increasing, Y decreasing |

C. | Any of the above |

D. | There is no change in X and Y |

Answer» C. Any of the above |

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