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Q: What is the coefficient of determination if r 0.45?
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How is coefficient of determination and coefficient of correlation is related?

coefficient of determination

How do you determine coefficient of determination in excel?

= CORREL(x values,y values) ***clarification**** CORREL gives you the correlation coefficient (r), which is different than the coefficient of determination (R2) outside of simple linear regression situations.

What does the coefficient of determination explain in regression?

The coefficient, also commonly known as R-square, is used as a guideline to measure the accuracy of the model.

What is coefficient variation?

it is da same as coefficient of determination

Can A regression equation have a negative coefficient of correlation and a negative coefficient of determination?

It's not quite possible for the coefficient of determination to be negative at all, because of its definition as r2 (coefficient of correlation squared). The coefficient of determination is useful since tells us how accurate the regression line's predictions will be but it cannot tell us which direction the line is going since it will always be a positive quantity even if the correlation is negative. On the other hand, r (the coefficient of correlation) gives the strength and direction of the correlation but says nothing about the regression line equation. Both r and r2 are found similarly but they are typically used to tell us different things.

What is coefficient of determination?

The coefficient of determination R2 is the square of the correlation coefficient. It is used generally to determine the goodness of fit of a model. See: for more details.

How would one explain the coefficient of determination?

The coefficient of determination, is when someone tries to predict the outcome of the testing of a hypothesis, or their guess at to what will happen. It helps determine how well outcomes are determined beforehand.

Multiple coefficient of determination and a regress ion table?

Adjusted R2

What is numerical range of regression coefficient?

ɪf the regresion coefficient is the coefficient of determination, then it's range is between 0 or 1. ɪf the regression coefficient is the correaltion coefficient (which i think it is) the it must lie between -1 or 1.

What are the uses of emf measurements?

1- Determination of activity coefficient . 2-determination of of composition of complex ion. 3-Potentiometric titrations.

Cause and effect relationships cannot be determined using the coefficient of determination?


What is an example of two variables that would be positively correlated and two variables that could be negatively correlated?

False. Correlation coefficient as denoted by r, ranges from -1 to 1. Coefficient of determination, or r squared ranges from 0 to 1. I note that x,y data points that have a high negative correlation would plot with a negative trend or a negatively sloped line if a best fit regression line is determined. I note also that x,y data points with a high positive correlation would plot with a positive trend or positively sloped line if a best fit regression line is determined. The coefficient of determination for r = 0.9 and r= -0.9 would be 0.81.