1. Sine Waves
Part II: Data Analysis

2. Setting Up In the Mode Menu, turn RADIANS on!
Clear any equations or lists from your calculator to start!
From the Y= list
From STAT lists
Turn Stat Plots OFF
In the Mode Menu, turn RADIANS on!

3. Enter the Data Press the  button Choose Edit… to enter the data
Enter your data into L1 and L2

4. Setting up your Plot To Get into the Stat Plot Menu, press  .
Select Plot1
Press enter on ‘On’

5. Graphing Your Stats Press ZOOM
Choose ZoomStat (9) – this will change your window settings to fit all of the data in AND graph it!

6. (This is called a sinusoidal regression)
Fitting an Equation
(This is called a sinusoidal regression)
Press the  button and cursor over  to the Calc menu
Cursor down to C:SinReg
Press Enter
Enter the list names that contain your data, separated by a comma
(For L1 press )
To tell it where to store the equation, press  for Y-Vars and then  for functions, and then choose Y1

7. Press Graph!
Now that you’ve got a curve of best fit, you no longer need the data. Turn the stat plot OFF ( to get into the stat plot menu) and then press  again.
Now you are ready to answer questions about your graph!

8. That’s it for now!