Model Car A Car B Car C Car D City MPG 52 Highway MPG 49 45 The following table gives the city and highway miles per gallon for four hybrid cars. 51 44 40 38 43 (a) Obtain the least-squares line that fits these data. (b) Use the equation from (a) to estimate the highway mpg for a hybrid car that gets 49 mpg in city driving. (c) Use the equation from (a) to estimate the city mpg for a hybrid car that gets 49 mpg in highway driving. (a) Find the straight line that provides the best least-squares fit to these data. y = (Ox+ (O (Type integers or decimals rounded to the nearest thousandth as needed.)
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.
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