Texas Instruments BA II PLUS User Manual page 95

Notes about the Statistics Worksheet
& j & z sets all
the Stat portion of the worksheet to zero, but does not affect
the statistics calculation method.
& k & z sets the statistics calculation method to
and all values to zero.
LIN
& } ! sets the statistics calculation method to
, , and all other values to zero.
X Y
You can enter up to 50 (x,y) data points.
If you have not entered any data points, an error will occur
when you press # or " to move through the portion of the
worksheet that displays results.
When you are entering data for one-variable statistics,
represents the value and
occurrences (frequency). When you enter a value for
value for
To analyze one-variable statistics, select
, ,
x sX
Sx
variable statistics.
When analyzing two-variable statistics, you have four
regression methods to choose from:
•
LIN
•
Ln
•
EXP
•
PWR
Except for
automatically computed and displayed when you access them.
You can use the
You can enter a value for
to compute
Y'
6: Statistics Worksheet
nn defaults to 1.
Y
2
, , and are computed and displayed for one-
GX GX
— Standard linear regression analysis
— Logarithmic regression analysis
— Exponential regression analysis
— Power regression analysis
and , the values for the statistics variables are
X' Y'
and
X' Y'
.
X'
and values and all values in
X Y
nn specifies the number of
Y
variables for regression predictions.
to compute
X' Y'
nn
X
nn, the
X
. Only values for
1-V
, or enter a value for
and
LIN
,
n
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