Correlation Regression Quiz 13

This Correlation Regression Quiz features essential MCQs on regression lines, coefficients, and interpretation. Prepare for your statistics exam or data analyst job test with this comprehensive correlation and regression quiz. Includes 20 MCQs on the coefficient of determination $(r^2$), regression coefficients, scatter plots, and the method introduced by Francis Galton. Ideal for students and aspiring data scientists. Let us start with the Online Correlation Regression Quiz now.

Online Correlation Regression Quiz 13 with Answers

• What is the necessary condition for the value of the regression coefficients?
• Which of the following is the G.M. of two regression coefficients?
• If $r$ is negative, then which of the following is true?
• If the coefficient of correlation between two variables is 0.7, then the percentage of the variation uncounted for is
• If the coefficient of correlation between two variables is $-0.9$, then the coefficient of determination is
• The regression coefficients remain unchanged due to
• If the value of $r=0$, then which of the following must be true?
• What is the type of correlation between temperature and sales of cold drinks in summer?
• The correlation coefficient shows the
• If the change of one variable and the change of the other variable are constant (equal change), then the correlation is
• The values of the coefficient of determination always lie in
• The regression line, also known as
• A numerical measure which shows a possible change in the value of $X$ for a unit in $Y$ is denoted as
• In the regression line $Y=a + bX$, the value of $a$ is known as
• What is the value of $b$ known as, in $Y=a+bX$ is
• If the slopes of two regression lines are equal, then
• What is the intersection point (common point) of two regression lines?
• For a perfect strong correlation, if $b_{yx}=-0.5$, then what is the value of$b_{xy}$?
• The term “regression was initially introduced by
• If the regression equation of $Y$ on $X$ is $9X+nY+8=0$ and the equation of $X$ on $Y$ is $2X+Y-m=0$ and the mean of $X$ and $Y$ is $-1$ and $4$, respectively, then the values of $m$ and $n$ are

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