| 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 measures of strength of closeness of linear relationship between two variables is called |
- A. simple linear regression
- B. composite linear regression
- C. simple linear correlation
- D. composite linear correlation
|
| 3 |
The regression equation always passes throught_________. |
- A. (X, Y)
- B. (X, y̅)
- C. (X̅, Y)
- D. (X̅, y̅)
|
| 4 |
If constants are added to or subtracted from the values of the variables, the value of r |
- A. is negative
- B. is positive
- C. is zero
- D. remains unchanged
|
| 5 |
The estimated regression line always passes through |
- A. origin
- B.
- C. x-axis
- D. y-axis
|
| 6 |
If the value of any regression coefficient is zero, then two variable are _______. |
- A. Qualitative
- B. Correlation
- C. Dependent
- D. Independent
|
| 7 |
The variable, that forms the basis of estimation, is called_______. |
- A. Regression
- B. Regressor
- C. Regressand
- D. Estimated
|
| 8 |
A relationship where the flow of the data points is best represented by a curve is called_______. |
- A. Linear positive
- B. Linear negative
- C. Linear relationship
- D. Nonlinear relatiobship
|
| 9 |
|
- A. 37
- B. 132
- C. 32
- D. cannot be calculated
|
| 10 |
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
|
