Texas Instruments TI-34 II Explorer Plus User Manual page 132

Quick Reference to Keys
Key
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© 1999 T I
EXAS NSTRUMENTS
Function
Simplifies a fraction.
Displays the following menu from which you can select
.
CLRDATA
Analyzes data from 1 set of data with 1 measured
1-VAR
variable— x .
nalyzes paired data from 2 sets of data with 2
2-VAR A
measured variables— x , the independent variable,
and y , the dependent variable.
Clears data values without exiting
CLRDATA
Displays the following menu of stat variables with their current values.
n Number of x (or x,y) data points
v or w
Mean of all x or y values
Sx or Sy Sample standard deviation of x or y
sx or sy
Population standard deviation of x or y
Gx or G y
Sum of all x values or y values
2 2
Gx or G y
Sum of all x
Gxy
Sum of (x x y) for all xy pairs in 2 lists
a Linear regression slope
b Linear regression y-intercept
r Correlation coefficient
The following variables are used to calculate predicted values based on
the correlation when a given value is input.
x¢ or y¢ Calculates the predicted value of x or y, respectively,
when given value of y or x, respectively, is input.
Displays the following menu of variables.
A B C D E Lets you select a variable in which to store the
displayed value. The new variable replaces any
previously stored value.
rand Lets you set a seed value for random integers.
I
NCORPORATED
(Continued)
2 2
values or y values
TI-34 Û: A Guide for Teachers
A
, or
1-VAR, 2-VAR
mode.
STAT
A-5