10. Approximation and Least Squares
Applications To Data — Quiz
Test your understanding of applications to data with 5 practice questions.
Practice Questions
Question 1
In data fitting, what is a residual?
Question 2
What is the main goal of the least squares method when fitting data?
Question 3
A linear system has more equations than unknowns. What is it called?
Question 4
If the residuals are $2$, $-1$, and $3$, what is the sum of their squares?
Question 5
When data points roughly increase as $x$ increases, what is usually true about the slope of a best-fit line?