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Assumptions in Linear Regression

The essentials for reliable data analysis unfold here.

Linearity Unveiled

A linear relationship between variables forms the backbone of regression analysis, crucial for accurate predictions.

The Truth About Errors

Error normality is key to unbiased results and confidence in regression outcomes.

Homoscedasticity's Role

Consistent error variance across data ensures the precision of model predictions.

Multicollinearity's Impact

Identifying and mitigating multicollinearity is essential for model stability and clarity.

Preparing Your Data

Scaling and normalization can significantly enhance linear regression results.

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Assessing Linearity

Scatterplots and residuals analysis confirm the essential linear relationship in regression.

Normality of Residuals

Histograms and Q-Q plots are tools to ensure residuals follow a normal distribution.

Testing Homoscedasticity

The Breusch-Pagan test checks for consistent variance in residuals, a cornerstone of reliable models.

Ensuring Independence

Independent observations are crucial to avoid biased estimates, enhancing prediction reliability.

Detecting Multicollinearity

Variance Inflation Factor (VIF) and correlation matrices are key to identifying multicollinearity issues.

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