Performing A Statistical Calculation - Texas Instruments TI-89 Manual Book

Performing a Statistical Calculation

The Calculate
Dialog Box
Note: If an item is not valid
for the current settings, it will
appear dimmed. You cannot
move the cursor to a
dimmed item.
Tip: To use an existing list
variable for x, y, Freq, or
Category, type the list name
instead of a column number.
From the Data/Matrix Editor, use the ‡ Calc toolbar menu to
perform statistical calculations. You can analyze one-variable
or two-variable statistics, or perform several types of
regression analyses.
You must have a data variable opened. The Data/Matrix Editor will
not perform statistical calculations with a list or matrix variable.
From the Data/Matrix Editor:
1. Press ‡ to display the
dialog box.
Calculate
This example shows all
items as active. On your
calculator, items are
active only if they are
valid for the current
settings of
Calculation
and
Type Use Freq and
Categories.
2. Specify applicable settings for the active items.
Item Description
Calculation Type Select the type of calculation. For descriptions,
refer to page 261.
Type the column number in the Data/Matrix
x
Editor (
independent variable.
Type the column number used for
y
dependent variable. This is required for all
Calculation Types
If
Store RegEQ to
can select a function name (
This lets you store the regression equation so
that it will be displayed in the Y= Editor.
Select
Use Freq and
Categories? Include Categories
Use Freq and Categories? = YES
, , etc.) used for
C1 C2
except
is a regression analysis, you
Calculation Type
or . Note that
NO YES
are active only when
Chapter 16: Statistics and Data Plots
Pathname of the
data variable
values, the
x
values, the
y
.
OneVar
, , etc.).
y1(x) y2(x)
, , and
Freq Category
.
259