10. Approximation and Least Squares
Best-fit Approximations — Quiz
Test your understanding of best-fit approximations with 5 practice questions.
Practice Questions
Question 1
In best-fit approximation, what is the main goal of the approximation?
Question 2
A system with more equations than unknowns is called what?
Question 3
What is a residual in a data-fitting problem?
Question 4
If a data point lies exactly on the fitted line, what is its residual?
Question 5
Why are residuals squared in the least-squares method?