| 1 |
A data points falling along a straight line is called______. |
- A. Linear relationship
- B. Non-linear relationship
- C. Linear positive
- D. Scatter diagram
|
| 2 |
The value of the coefficient of correlation relies between__________. |
- A. -1 and +1
- B. 0 and 1
- C. -1 and 0
- D. -0.5 and + 0.5
|
| 3 |
If b<sub>yx</sub> = 0.89 and b<sub>xy</sub> = 0.75, then r= |
- A. 0.89
- B. 0.28
- C. 0.98
- D. 0.82
|
| 4 |
|
- A. 37
- B. 132
- C. 32
- D. cannot be calculated
|
| 5 |
In simple linear regression, the number of unknown constants are: |
- A. Two
- B. Three
- C. Four
- D. Five
|
| 6 |
If the value of any regression coefficient is zero, then two variable are _______. |
- A. Qualitative
- B. Correlation
- C. Dependent
- D. Independent
|
| 7 |
A process by which we estimate the value of dependent variable on the basis of one or more independent variable is called_________. |
- A. Residual
- B. Correlation
- C. Regression
- D. Slope
|
| 8 |
Regression line x on y is |
|
| 9 |
If X and Y are independent, then Cov(x,y) = 0 which implies that |
- A. b<sub>yx</sub> = 0
- B. b<sub>xy</sub> = 0
- C. ρ = 0
- D. a = 0
|
| 10 |
The variable, that forms the basis of estimation, is called_______. |
- A. Regression
- B. Regressor
- C. Regressand
- D. Estimated
|
