Statistics for Data Analyst

The post is about Correlation Regression Analysis MCQs. There are 20 multiple-choice questions. The quiz covers topics related to the coefficient of correlation, regression analysis, simple linear regression equations, interpretation of correlation, and regression coefficients. Let us start with the Correlation Regression Analysis MCQs Quiz.

Online Correlation Regression Analysis MCQs with Answers

• The value of the coefficient of correlation lies between
• If the scatter diagram is drawn the scatter points lie on a straight line, then it indicates
• In the model $Y= mX+ a\,\,\,$, $Y$ is also known as the:
• The regression equation is the line with a slope passing through
• If the regression equation is equal to $Y=23.6 – 54.2X$, then $23.6$ is the ———- while $-54.2$ is the ———- of the regression line.
• The sample coefficient of correlation
• If the equation of the regression line is $y = 5$, then what result will you take out from it?
• Which of the following relationships holds
• In regression equation $y=\alpha + \beta X + e$, both $X$ and $y$ variables are
• If $R^2$ is zero, that is no collinearity/ Multicollinearity, the variance inflation factor (VIF) will be
• The method of least squares finds the best fit line that ———- the error between observed & estimated points on the line
• The predicted rate of response of the dependent variable to changes in the independent variable is called
• The slope of the regression line of $Y$ on $X$ is also called
• In a simple regression, the number of unknown constants are
• In a simple regression equation, the number of variables are
• If $Y=2+0.6x$ then the value of the slope will be
• Which of the following can never be taken as the coefficient of correlation?
• When $\beta_{yx}$ is positive, then $\beta_{xy}$ will be
• If $Y=2+0.6X$ then the value of $Y$-intercept will be
• If $r=0.6$ and $\beta_{yx}=1.8$ then $\beta_{xy} = ?$

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The post is about MCQs on Correlation and Regression Analysis with Answers. There are 20 multiple-choice questions covering the topics related to correlation and regression analysis, interpretation of correlation and regression coefficients, relationship between variables, and correlation and regression coefficients. Let us start with MCQs on Correlation and Regression.

Please go to Important MCQs on Correlation and Regression 3 to view the test

MCQs on Correlation and Regression with Answers

• The coefficient of Correlation values lies between
• If $r_{xy} = -0.84$ then $r_{yx}=?$
• In Correlation, both variables are always
• If two variables oppose each other then the correlation will be
• A perfect negative correlation is signified by
• The Coefficient of Correlation between $U=X$ and $V=-X$ is
• The Coefficient of Correlation between $X$ and $X$ is
• The Coefficient of Correlation $r$ is independent of
• If $X$ and $Y$ are independent of each other, the Coefficient of Correlation is
• If $b_{yx} <0$ and $b_{xy} =<0$, then $r$ is
• If $r=0.6, b_{yx}=1.2$ then $b_{xy}=?$
• When the regression line passes through the origin then
• Two regression lines are parallel to each other if their slope is
• When $b_{xy}$ is positive, then $b_{yx}$ will be
• If $\hat{Y}=a$ then $r_{xy}$?
• When two regression coefficients bear the same algebraic signs, then the correlation coefficient will be
• It is possible that two regression coefficients have
• The regression coefficient is independent of
• In the regression line $Y=a+bX$
• In the regression line $Y=a+bX$ the following is always true

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The post is about the Correlation and Regression Quiz. There are 20 multiple-choice questions. The quiz covers the topics related to correlation analysis and regression analysis, Basic concepts, assumptions, and violations of correlation and regression analysis, Model selection criteria, interpretation of correlation and regression coefficients, etc.

Please go to Best Correlation and Regression Quiz 2 to view the test

Online Correlation and Regression Quiz with Answers

• The strength (degree) of the correlation between a set of independent variables $X$ and a dependent variable $Y$ is measured by
• The percent of the total variation of the dependent variable $Y$ explained by the set of independent variables $X$ is measured by
• A coefficient of correlation is computed to be -0.95 means that
• Let the coefficient of determination computed to be 0.39 in a problem involving one independent variable and one dependent variable. This result means that
• The relationship between the correlation coefficient and the coefficient of determination is that
• Multicollinearity exists when
• If “time” is used as the independent variable in a simple linear regression analysis, then which of the following assumptions could be violated
• In multiple regression, when the global test of significance is rejected, we can conclude that
• A residual is defined as
• What test statistic is used for a global test of significance?
• If the value of any regression coefficient is zero, then two variables are said to be
• In the straight line graph of the linear equation $Y=a+bX$, the slope will be upward if
• In the straight line graph of the linear equation $Y=a+bX$, the slope will be downward if
• In the straight line graph of the linear equation $Y=a+BX$, the slope is horizontal if
• For the regression $\hat{Y}=5$, the value of regression coefficient of $Y$ on $X$ will be
• If $\beta_{yx} = -1.36$ and $\beta_{xy} = -0.34$ then $r_{xy} =$
• If one regression coefficient is greater than one then the other will be
• To determine the height of a person when his weight is given is
• The dependent variable is also called
• The dependent variable is also called

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The post is about Correlation and Regression MCQs. There are 20 multiple-choice questions. The quiz covers topics related to the basics of correlation Analysis and regression analysis, correlation and regression coefficients, graphical representation relationships between variables, simple linear regression models and multiple linear regression models, and assumptions related to correlation and regression models. Let us start with the Correlation and Regression MCQs Quiz.

Please go to Best Correlation and Regression MCQs 1 to view the test

Online Correlation and Regression MCQs

• The estimate of $\beta$ in the regression equation $Y=\alpha+\beta\,X + e$ by the method of least square is:
• If $\beta_{XY}$ and $\beta_{YX}$ are two regression coefficients, they have
• The average of two regression coefficients is always greater than or equal to the correction coefficient is called:
• If $\beta_{YX}>1$, then $\beta_{XY}$ is:
• If the two lines of regression are perpendicular to each other, the correlation coefficient $r=$ is:
• The regression coefficient is independent of
• If each of $X$ variable is divided by 5 and $Y$ by 10 then $\beta_{YX}$ by coded value is:
• The geometric mean of the two regression coefficient $\beta_{YX}$ and $\beta_{XY}$ is equal to:
• If $X$ and $Y$ are two independent variates with variance $\sigma_X^2$ and $\sigma_Y^2$, respectively, the coefficient of correlation between $X$ and ($X-Y$) is equal to:
• In multiple linear regression analysis, the square root of Mean Squared Error (MSE) is called the:
• The range of a partial correlation coefficient is:
• Homogeneity of three or more population correlation coefficients can be tested by
• If $\rho$ is the correlation coefficient, the quantity $\sqrt{1-\rho^2}$ is termed as
• If the correlation coefficient between the variables $X$ and $Y$ is $\rho$, the correlation coefficient between $X^2$ and $Y^2$ is
• The lines of regression intersect at the point
• If $\rho=0$, the lines of regression are:
• An investigator reports that the arithmetic mean of two regression coefficients of a regression line is 0.7 and the correlation coefficient is 0.75. Are the results
• If regression line $\hat{y}=5$ then value of regression coefficient of $y$ on $x$ is
• When two variables move in the same direction then the correlation between the variables is
• If all the actual and estimated values of $Y$ are the same on the regression line, the sum of squares of errors will be

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