Analysis of the Relationship Between Vehicle Weight and Miles per Gallon

Nov 21, 2024, 3:55 PM

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Find Correlation, Regression between any attributes and write your analysis about output received. Paste input in your answer.

The correlation between Miles per Gallon (MPG) and Vehicle Weight (WEIGHT) is approximately -0.807. This indicates a strong negative correlation, meaning that as the weight of the vehicle increases, the miles per gallon tend to decrease.
The p-value associated with this correlation is extremely low (1.29e-92), suggesting that the correlation is statistically significant.

Linear Regression Analysis

Let's perform a linear regression analysis to further explore the relationship between these two variables.
The linear regression analysis between Vehicle Weight (WEIGHT) and Miles per Gallon (MPG) provides the following equation:
MPG=0.0074×WEIGHT+45.49MPG = -0.0074 \times WEIGHT + 45.49
This equation indicates that for every additional pound of vehicle weight, the miles per gallon decrease by approximately 0.0074. The intercept of 45.49 suggests that a vehicle with zero weight would theoretically have an MPG of 45.49, which is not practically possible but serves as a baseline for the regression line.

Summary

  • Correlation: There is a strong negative correlation (-0.807) between vehicle weight and MPG.
  • Regression: The regression line suggests a decrease in MPG with an increase in vehicle weight.
These findings are consistent with the expectation that heavier vehicles tend to be less fuel-efficient.
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