RegressionSteps - Once you have found an equation for a...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Math 105 Winter 2009 Using Regression to Find a Formula to Fit Data Your graphing calculator is a powerful tool in finding equations that best model given data. The first step is to enter your data into lists, which can be done by pressing your [STAT] button, then selecting “1:Edit”. The steps to find a function for a power regression are outlined below. For other types of functions, simply select the type of function you wish to find under the “CALC” menu under [STAT]. Graphing the Data Points and the Power Function at the Same Time
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Once you have found an equation for a function using a regression calculation, you can check to see that it actually does a good job of representing the overall trend in the data. To graph the data points, make sure that you go to [STAT PLOT] and turn on Plot1. Then press [Y=] and type the formula for your regression curve. Press the [GRAPH] button to see both the data points and the curve. IMPORTANT NOTE: When not doing regression, it is best to go to STAT PLOT and keep all plots turned off in order to avoid calculator errors....
View Full Document

Ask a homework question - tutors are online