Which of the following functional forms will be the most restrictive in terms of the shape of the resulting interpolation of data gaps in a sample data set?
A) Linear
B) Quadratic
C) Cubic
D) Piecewise linear

Question

Quizplus · Accepted Answer

The linear interpolation form will be the most restrictive because it will create a straight line between two adjacent data points, which will not capture any curvature or complexity in the data set. The other forms (quadratic, cubic, and piecewise linear) allow for more flexibility in the shape of the interpolation.

Which of the Following Functional Forms Will Be the Most