Texas Instruments BA II Plus User Manual

88 BA II PLUS™ Calculator
Statistics Worksheet Labels
Keys Label Meaning Variable Type
& j
#
X
nn
*
Y
nn
*
Current X value
Current Y value
Enter-only
Enter-only
& k
& V
LIN
Ln
EXP
PWR
1-V
Standard linear regression
Logarithmic regression
Exponential regression
Power regression
One-variable statistics
Setting
Setting
Setting
Setting
Setting
#
(as needed)
n
x
Sx
s
x
y
**
Sy
**
s
y
**
a
**
b
**
r
**
X'
**
Y'
**
G
X
G
X
2
G
Y
**
G
Y
2
**
G
XY
**
Number of observations
Mean (average) of X values
Sample standard deviation of X
Population standard deviation of X
Mean (average) of Y values
Sample standard deviation of Y
Population standard deviation of Y
Linear regression y-intercept
Linear regression slope
Correlation coefficient
Predicted X value
Predicted Y value
Sum of X values
Sum of X squared values
Sum of Y values
Sum of Y squared values
Sum of XY products
Auto-compute
Auto-compute
Auto-compute
Auto-compute
Auto-compute
Auto-compute
Auto-compute
Auto-compute
Auto-compute
Auto-compute
Enter/compute
Enter/compute
Auto-compute
Auto-compute
Auto-compute
Auto-compute
Auto-compute
*
nn
indicates the number of the current
X
or
Y
value.
** Not displayed for one-variable statistics.

Texas Instruments BA II Plus Specifications

General

Type	Financial
Cover	-
Form factor	Pocket
Control type	Buttons
Product color	Black
Digits	10 digits
Display tilting	No
Display number of lines	1 lines
Memory registers	10
Power source	Battery