What R function is used to fit a quadratic regression model?
A) lm
B) predict
C) summary
D) cor

Question

Quizplus · Accepted Answer

The "lm" (linear regression) function in R can be used to fit a quadratic regression model by including a quadratic term (using the "^" operator) in the formula argument. For example, if "y" is the response variable and "x" is the predictor variable, a quadratic regression model can be fit using the code: lm(y ~ x + I(x^2), data = mydata).

What R Function Is Used to Fit a Quadratic Regression