98
Statistics 2Var app
Calculating predicted values
The functions
PREDX
and
PREDY
estimate (predict) values
for
X
or
Y
given a hypothetical value for the other. The
estimation is made based on the equation that has been
calculated to fit the data according to the specified fit.
Find predicted
values
1. In the Plot view, draw the regression curve for the
data set.
2. Press
\
to move to the regression curve.
3. Press
and enter the value of
X
. The cursor
jumps to the specified point on the curve and the
coordinate display shows
X
and the predicted value
of
Y
.
In the Home view:
•
Enter
PREDX
(
y-value
)
E
to find the predicted value
for the independent variable given a hypothetical
dependent value.
•
Enter PREDY(
x-value
) to find the predicted value of the
dependent variable given a hypothetical independent
variable.
You can type
PREDX
and
PREDY
into the edit line, or you
can copy these function names from the Commands menu
under the
Apps
,
Statistics 2Var
category.
H I N T
In cases where more than one fit curve is displayed, the
PREDX
and
PREDY
functions use the first active fit defined
in the Symbolic view.
Содержание 39gII
Страница 1: ...HP 39gII graphing calculator user s guide Edition1 Part Number NW249 90001 ...
Страница 2: ...Printing History Edition 1 November 201 1 ...
Страница 32: ...22 Getting started ...
Страница 58: ...48 Apps and their views ...
Страница 70: ...60 Function app ...
Страница 80: ...70 Solve app ...
Страница 132: ...122 Parametric app your own table and the split screen functionality available in the Function app ...
Страница 136: ...126 Polar app ...
Страница 140: ...130 Sequence app ...
Страница 148: ...138 Finance app ...
Страница 152: ...142 Linear Solver app ...
Страница 218: ...208 Matrices ...
Страница 226: ...216 Notes and Info ...
Страница 238: ...228 Variables and memory management ...
Страница 318: ...308 Programming ...
Страница 340: ...330 Reference information ...
Страница 346: ...vi Product Regulatory Information ...