Math Is Fun
Math Is Fun: Scatter Plots
Explains, with examples, what scatter plots are and how to interpret the data. Discusses trends, interpolation and extrapolation, and correlation. Includes a set of practice questions.
CK-12 Foundation
Ck 12: Algebra: Linear Interpolation and Extrapolation
[Free Registration/Login may be required to access all resource tools.] Use linear interpolation, linear extrapolation, and the line of best fit to make predictions about a data set.
Science Struck
Science Struck: Guide on Interpolation vs. Extrapolation
Explains what interpolation and extrapolation are and methods used for them in statistics. Gives real-world examples of their applications in telecommunications, engineering, thermodynamics etc.