| 1 |
In simple linear regression, the number of unknown constants are: |
- A. Two
- B. Three
- C. Four
- D. Five
|
| 2 |
|
- A. 37
- B. 132
- C. 32
- D. cannot be calculated
|
| 3 |
|
- A. y-intercept
- B. x-intercept
- C. slope
- D. none of these
|
| 4 |
The relationship that describes the dependence of the expected value of the dependent random variable for a given value of the independent non-random variable is called |
- A. equation
- B. relation
- C. ratio
- D. regression
|
| 5 |
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
|
| 6 |
|
- A. S<sub>xy</sub>
- B. S<sub>yx</sub>
- C. b<sub>xy</sub>
- D. b<sub>yx</sub>
|
| 7 |
r<sub>xy</sub> -------------- r<sub>yx</sub> |
- A. =
- B. <
- C. >
- D. ≠
|
| 8 |
If r = -1, then there is |
- A. negative correlation
- B. perfect negative correlation
- C. no correlation
- D. average correlation
|
| 9 |
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
|
| 10 |
The regression equation always passes throught_________. |
- A. (X, Y)
- B. (X, y̅)
- C. (X̅, Y)
- D. (X̅, y̅)
|
