Bglydewellid
Answered

how do you know whether to perform a linear regression or a quadratic regression for a given set of data

Sagot :

if you have a date set that changes linearly(in a line) then do a Lin reg if it appears to curve and is not one to one then do a quad reg. this is best done on your calculator

1. If the first difference is the same value, the model will be linear.

2. If the second difference is the same value, the model will be quadratic.