Scatterplots

Scatterplots

Choose true relationship:

Random

Linear

Quadratic

Enter sample size

Enter the y intercept

Enter the coefficient of x (the slope)

Enter the y intercept

Enter the cofficient of x

Enter the coefficient of x ²

Select standard deviation:

Choose variability behaviour:

Homoscedastic Heteroscedastic

Select model to fit:

Linear: y = α + β x

Quadratic: y = α + β x + γ x ²

Choose residual plot:

Standardized Residuals vs x

Standardized Residuals vs fitted

QQ plot of standardized residuals

Coefficients: