Here are the 5 MCQs of Regression Line Equation. You can practice these MCQs frequently to prepare for your exams. Stay Connected for more.

**Regression Line Equation Quiz**

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**List of MCQs included in Quiz**

**In the regression equation Y = a + βx + ε, both X and Y variables are…**- Random
- Fixed
- X is fixed and Y is random
- Y is fixed and X is random

**The dependent variable is also known as…**- Explained variable
- Response variable
- Predicted variable
- All of above

**If the correlation co-efficient r = 0.7, then the proportion of variation for Y explained by X is…**- 0.49
- 0.5
- 0.7
- √0.70

**If there is no linear relationship between the two variables then which one of the following does not hold?**- a = 0
- b = 0
- r
^{2}=0 - The regression line is either vertical; or horizontal.

**When the slope of regression line is negative, the following statistic is also negative**- r
- r
^{2} - Standard error of estimate
- Standard error of slope co-efficient

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