PPL - Correlation Lesson

Correlation

Introduction

To be able to effectively plan, you might need to make some predictions. What will the economy look like in ten years? How will inflation affect the worth of your house? Predictions can be made by looking at past data and searching for trends. If the trends continue, then you have a great model to predict what will happen in the future!

Correlation Activity

Linear Regression Review

Let’s review how to find the regression line. Watch the following video and work along with the example shown.

 

Steps Using Your Calculator

*These steps may vary depending on your calculator.

Press STAT and then Edit.

Input the data.

Press STAT, then CALC, then LinReg and ENTER

Steps Using a Spreadsheet

Input the data into two columns.

Highlight the data, click INSERT and choose a scatterplot.

Using the design tools, change the layout of the scatterplot to include the trend line.

 

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