Car hp mpg Audi A4 211 30 BMW 3 series 230 28 Buick LaCrosse 182 30 Chevy Cobalt Chevy Suburban 1500 Ford Expedition 155 37 320 21 310 20 GMC Yukon 320 21 Honda Civic 140 34 Honda Accord 177 31 Hyundai Elantra 138 35 Lexus IS 350 306 25 Lincoln Navigator 310 20 Mazda Tribute 171 28 Toyota Camry 169 33 Volkswagen Beetle 150 28
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.
ings and expected gas mileage for several 2010 vehicles.
b) Describe the direction, form, and strength of the plot.
c) Find the
gallon.
d) Write a few sentences telling what the plot says about
fuel economy.

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