Lesson 3

Lesson 3 Summary

 

In this lesson you learned how to create regression equations for data that has quadratic or cubic trends. You used these equations to make and solve contextual problems using interpolation and extrapolation.

 

The skills of interpolation and extrapolation are important tools that you may use later in life. Imagine that you are hired to provide catering for a group of 100 people. You are, however, informed at the last minute that you will be only be catering for 74 people. You will be able to make the appropriate changes.

 

These skills also come in handy when making predictions and analyzing information in job situations.

 

You will even see the use of these skills when predicting the orbits of planets and comets, times of flights for objects, and price increases of certain items.

 

Regression equations and interpolation, as well as extrapolation, can often be seen in the news when reports of housing prices, inflation, and cost of living are calculated. Keep this in mind as you prepare for your final research project for this course.