Which one of the following statement is not correctSelect one:a.Regression coefficient varies between -1 to +1.b.Correlation is diagrammatically represented by Scatter Diagram.c.The correlation coefficient does not change if you interchange the variables.d.Regression analysis shows the rate of change in dependent variable with one-unit change (rise) in dependent variable.Clear my choiceQuestion 2Not yet answeredMarked out of 1.00Flag questionTipsQuestion textUnlike regression, in correlation we do not require any dependent and independent variableSelect one:a.Trueb.False

Which of the following statements about the correlation coefficient is FALSE? It measures the strength and direction of a linear relationship. A value of 0 indicates no linear relationship. It can only take positive values. A value of -1 indicates a perfect negative linear relationship.

Which of the following statements is TRUE?Only a correlation equal to 0 implies causation.A correlation of 1 or -1 implies causation. If the two variables of a scatterplot are strongly related, this condition implies causation between the two variables.A high correlation is insufficient to establish causation on its own.

Which of the following correlational coefficients indicate a relationship that shows as one variable increases, the other variable is increasing also? (There are two correct answers)Group of answer choices-.77+.79-.87+.82

We first introduce the concept of correlation in the Section 2.5 notes.Consider a linear model of the relationship between two quantitative variables in which the slope coefficient is non-zero. Which of the following statements about the slope coefficient and the correlation r between the two variables is correct?Question 1Select one:a.The slope coefficient could be negative when the correlation coefficient is positiveb.The slope coefficient and the correlation coefficient should have the same sign (both positive, or both negative)c.The slope coefficient could be positive when the correlation coefficient is negatived.The correlation coefficient can only be a positive value (regardless of whether the slope is positive or negative)Clear my choice

The graph shows the volume of ice cubes versus temperature in degrees Celsius. Which statement is false?A.Temperature is the explanatory variable.B.Temperature is strongly correlated to the volume of ice cubes.C.The data show a negative linear relationship.D.The correlation coefficient is close to zero.