| 1 |
r is the ------------ of two regression co-efficient b<sub>yx</sub> and b<sub>xy</sub> |
- A. arithmetic mean
- B. geometric mean
- C. harmonic mean
- D. median
|
| 2 |
When b<sub>xy</sub> is positive, then b<sub>yx</sub> will be _______. |
- A. Negative
- B. Positive
- C. Zero
- D. One
|
| 3 |
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
|
| 4 |
The variable, that forms the basis of estimation, is called_______. |
- A. Regression
- B. Regressor
- C. Regressand
- D. Estimated
|
| 5 |
A set of points in a rectangular coordinate system, where each point represents an observed pair of values is called |
- A. least square regression
- B. scatter diagram
- C. pie graph
- D. regression coefficient
|
| 6 |
In simple linear regression, the number of unknown constants are: |
- A. Two
- B. Three
- C. Four
- D. Five
|
| 7 |
r<sub>xy</sub> -------------- r<sub>yx</sub> |
- A. =
- B. <
- C. >
- D. ≠
|
| 8 |
The variable, whose resulting value depends upon the selected value of the independent variable is called______. |
- A. Regression
- B. Regressor
- C. Regressand
- D. Coefficient
|
| 9 |
The regression equation always passes throught_________. |
- A. (X, Y)
- B. (X, y̅)
- C. (X̅, Y)
- D. (X̅, y̅)
|
| 10 |
The straight line graph of the linear equation Y = a + bX, the slope will be upward it_______. |
- A. b = 0
- B. b < 0
- C. b > 0
- D. b ≠ 0
|
