HP 38g Graphing Calculator User Manual
Page 7
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Statistics
Example: Finding a Linear Equation to Fit Data..............5-2
Entering Statistical Data.......................................................5-5
One-Variable Data............................................................. 5-6
Two-Variable Data............................................................. 5-9
Managing Statistical Data............................................... 5-12
Analyzing the Data.............................................................. 5-14
Defining a Regression Model (2VAR)............................5-14
Computing Statistics (IVAR and 2VAR).................... 5-16
Plotting..................................................................................5-19
Plot Types..........................................................................5-20
Fitting a Curve to 2VAR Data........................................5-21
Regression Coefficients................................................... 5-21
Plot Settings...................................................................... 5-22
Trouble-shooting.............................................................. 5-22
Exploring the Plot................................................................5-23
Calculating Predicted Values..........................................5-24
Using Matrices
Creating and Storing Matrices............................................ 6-1
Matrix Arithmetic..................................................................6-6
Solving Systems of Linear Equations............................... 6-8
Matrix Functions....................................................................6-9
Examples........................................................................... 6-13
Using Lists
Creating and Storing Lists................................................... 7-1
List Functions.........................................................................7-4
Finding Statistical Values for List Elements................... 7-7
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