Given the following data (suppose x is the explanatory variable and y is the response variable) : x y 2 3 4 6 6 8 8 12 10 16 What is the slope of the least-squares regression line (best-fit line) for this set of data? What is the intercept of the least-squares regression line (best-fit line) for this set of data? Round to one decimal place. Using the slope and intercept for the regression line you listed above, what is the value of y when x = 5? Using the slope and intercept for the regression line you listed above, what is the value of x when y = 5? Using the slope and intercept for the regression line you listed above, what is the residual of the model when x = 6?
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.
Given the following data (suppose x is the explanatory variable and y is the response variable) :
| x | y |
| 2 | 3 |
| 4 | 6 |
| 6 | 8 |
| 8 | 12 |
| 10 | 16 |
What is the slope of the least-squares regression line (best-fit line) for this set of data?
What is the intercept of the least-squares regression line (best-fit line) for this set of data? Round to one decimal place.
Using the slope and intercept for the regression line you listed above, what is the value of y when x = 5?
Using the slope and intercept for the regression line you listed above, what is the value of x when y = 5?
Using the slope and intercept for the regression line you listed above, what is the residual of the model when x = 6?
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