1 |
A data points falling along a straight line is called______. |
- A. Linear relationship
- B. Non-linear relationship
- C. Linear positive
- D. Scatter diagram
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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
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3 |
If the value of any regression coefficient is zero, then two variable are _______. |
- A. Qualitative
- B. Correlation
- C. Dependent
- D. Independent
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4 |
The _______ regression line always passes through (X̅, y̅). |
- A. Opposite
- B. Estimated
- C. Estimates
- D. Random
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5 |
The variable, that forms the basis of estimation, is called_______. |
- A. Regression
- B. Regressor
- C. Regressand
- D. Estimated
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6 |
The estimates of the parameters=α and=β are |
- A. μ and=σ2
- B. a and b
- C. μ andπ
- D. χ2 and Z
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7 |
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- A. S<sub>xy</sub>
- B. S<sub>yx</sub>
- C. b<sub>xy</sub>
- D. b<sub>yx</sub>
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8 |
r<sub>xy</sub> -------------- r<sub>yx</sub> |
- A. =
- B. <
- C. >
- D. ≠
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9 |
The regression equation always passes throught_________. |
- A. (X, Y)
- B. (X, y̅)
- C. (X̅, Y)
- D. (X̅, y̅)
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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
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