'The quadratic regression equation for the data set is y=ax2+bx+c where a≠0 .
Step-by-step explanation:
- A quadratic regression is the process of finding the equation of the parabola that best fits a set of data.
- We get the equation manually is by using the least squares method.
Yes it is a good line of best fit
<span>A decreasing
B increasing
C stay the same
D </span>decreasing
Answer is B.
The first answer is c
42cm(2)
