This Section contains Multiple Choice Questions (MCQs) about Correlation Analysis, Simple Regression Analysis, Multiple Regression Analysis, Coefficient of Determination (Explained Variation), Unexplained Variation, Model Selection Criteria, Model Assumptions, Interpretation of results, Intercept, Slope, Partial Correlation, Significance tests, OLS Assumptions etc

**Question 1:**Coefficient of Correlation values lies between

A) -1 and +1

B) 0 and 1

C) -1 and 0

D) None of these

**Question 2:** If $r_{xy} = -0.84$ then $r_{yx}=?$

A) -0.84

B) 0.84

C) 0.42

D) None of these

**Question 3:** In Correlation both variables are always

A) Random

B) Non Random

C) Same

D) None

**Question 4:** If two variables oppose each other then the correlation will be

A) Positive Correlation

B) Zero Correlation

C) Perfect Correlation

D) Negative Correlation

**Question 5: **A perfect negative correlation is signified by

A) 0

B) 1

C) 0.5

D) -1

**Question 6: **The Coefficient of Correlation between $U=X$ and $V=-X$ is

A) +1

B) -1

C) 0

D) 0.5

**Question 7:** The Coefficient of Correlation between X and X is

A) -1 to +1

B) 0

C) -1

D) 1

**Question 8:** The Coefficient of Correlation r is independent of

A) Origin only

B) Scale of Measurement only

C) Both change of origin and scale of measurement

D) None of these

**Question 9:** If *X* and *Y* are independent to each other, the Coefficient of Correlation is

A) -1

B) 0

C) +1

D) None

**Question 10:** If $b_{yx} <0$ and $b_{xy} =<0$, then *r* is

A) =0

B) <0

C) >0

D: $neq 0$

**Question 11:** If $r=0.6, b_{yx}=1.2$ then $b_{xy}=?$

A) 0.3

B) 0.2

C) 0.72

D) 0.40

**Question 12:** When regression line passes through the origin then

A) Regression coefficient is zero

B) Correlation is zero

C) Intercept is zero

D) Association is zero

**Question 13:** Two regression lines are parallel to each other if their slope is

A) Different

B) Same

C) Negative

D) None of these

**Question 14:** When $b_{xy}$ is positive, then $b_{yx}$ will be

A) Positive

B) Negative

C) Zero

D) One

**Question 15:** If $\hat{Y}=a$ then $r_{xy}$?

A) $b_{xy}=1$

B) $b_{yx}=-1$

C) $b_{yx}=0$

D) None of these

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## MCQs on Correlation and Regression Analysis

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