In Exercises 13 and 14, use correlation coefficients to determine which of the given sets of data is best fit by its associated regression line and which is fit worst. Is it a perfect fit for any of the data sets? [HINT: See Example 3.]
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
![In Exercises 13 and 14, use correlation coefficients to determine which of the given sets
of data is best fit by its associated regression line and which is fit worst. Is it a perfect fit
for any of the data sets? [HINT: See Example 3.]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fec2937f9-36f2-4f7d-ab0a-c8e482869dab%2Fd4add418-6ddd-41c2-839e-ef81b99daf99%2F6zomtu_processed.png&w=3840&q=75)
Correlation coefficients is to determine the linear relationship between two variables.
If r = ±1, the model is a "perfect fit".
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