| 1 |
The estimated regression line always passes through |
- A. origin
- B.
- C. x-axis
- D. y-axis
|
| 2 |
A data points falling along a straight line is called______. |
- A. Linear relationship
- B. Non-linear relationship
- C. Linear positive
- D. Scatter diagram
|
| 3 |
The estimates of the parameters=α and=β are |
- A. μ and=σ2
- B. a and b
- C. μ andπ
- D. χ2 and Z
|
| 4 |
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
|
| 5 |
When b<sub>xy</sub> is positive, then b<sub>yx</sub> will be _______. |
- A. Negative
- B. Positive
- C. Zero
- D. One
|
| 6 |
The variable, that forms the basis of estimation, is called_______. |
- A. Regression
- B. Regressor
- C. Regressand
- D. Estimated
|
| 7 |
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
|
| 8 |
|
- A.
- B. b<sub>yx</sub>
- C. b<sub>xy</sub>
- D. S<sub>p</sub>
|
| 9 |
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
|
| 10 |
|
- A. S<sub>xy</sub>
- B. S<sub>yx</sub>
- C. b<sub>xy</sub>
- D. b<sub>yx</sub>
|
