When two variables have a high correlation with the third variable, does it imply they will...

When two variables have a high correlation with the third variable, does it imply they will as well be highly correlated?

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orchestra answered 2 years ago

Does a product-moment correlation of zero between two variables imply that the variables are not related?

1.Two variables have a positive non-linear correlation. Does the dependent variable increase or decrease as the...

1.Two variables have a positive non-linear correlation. Does the dependent variable increase or decrease as the independent variable increases? A. Dependent variable would remain the same B. Dependent variable increases C. Cannot determine from information given D. Dependent variable decreases 2. What does the variable ρ represent? A. The critical value for the correlation coefficient B. The population correlation coefficient C. The sample correlation coefficient D. The coefficient of determination 3.If there is a ^, or hat, above a variable,...

11. If “correlation does not imply causation,” what does it imply? 12. What are some of...

11. If “correlation does not imply causation,” what does it imply? 12. What are some of the possible reasons for large correlations between a pair of variables, X and Y? 17.What assumptions are required for a correlation to be a valid description of the relation between X and Y?

“Correlation does not imply causality” is an important concept when referring to regression. Briefly describe this...

“Correlation does not imply causality” is an important concept when referring to regression. Briefly describe this concept. Provide one example of how it may occur. Not exceed 100 words.

Correlation and Causality: What is meant by the statement that correlation does not imply causality? Part...

Correlation and Causality: What is meant by the statement that correlation does not imply causality? Part 2: Cause of Global Warming: If we find that there is a linear correlation between the concentration of carbon dioxide (CO2) in our atmosphere and the global temperature, does that indicate the changes in the concentration of carbon dioxide cause changes in the global temperature? Why or why not? Part 3: Application of concepts: Discuss and give at least one example of how you...

Does correlation imply causation? Discuss in your own words.

a) What does it mean if there is a correlation between two variables? b) What does...

a) What does it mean if there is a correlation between two variables? b) What does "correlation doesn't always imply causation" mean?

Explain the use of a correlation. 2. Define the limitations of correlation (third variable problem and...

Explain the use of a correlation. 2. Define the limitations of correlation (third variable problem and the directionality problem).

Suppose the correlation between two variables is +0.8. If the range of the predictor variable, X...

Suppose the correlation between two variables is +0.8. If the range of the predictor variable, X in the scatter plot is reduced, which of the following could happen? (Assume no additional data are collected and the relationship between the variables is casual) A) correlation, R, between X and Y may decrease. B) Overall range of Y values may increase. C) both (a) and (b) D) neither(a) nor (b)

a. In your own words, what is meant by the statement that correlation does not imply...

a. In your own words, what is meant by the statement that correlation does not imply causality. b.In your own words, please describe the difference between regression equation y=Bo+B1x and the regression equation ^y=bo+b1x?

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