Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
linear fit 1.3, 2.2,2.1, 5.8,3.7, 10.2,4.2, 11.8
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random