Texas Instruments TI-36X Solar Predict , for , values, and mean of , values.

14
TI36XSUS.DOC MURFE pruning--US version Pat Hatcher
Revised: 06/17/99 4:37 PM Printed: 06/17/99 4:37 PM
Page 14 of 29
For trend-line analysis, enter 1st data point, and then
enter just
y
values with 4 .
x
is automatically
incremented by 1.
Linear Regression Example
Predict
y
for
x
= 9, given (4,5), (4,5), (9,9), (2,3).
Calculate correlation coefficient, slope, and intercept of
the line, mean of
x
values, and mean of
y
values.
" 
STAT
0.
( [
STAT
0.
4
. 5 ( \ 2 4
STAT
2.
9
. 9 4
STAT
3.
2
. 3 4
STAT
4.
9
( q (predict
y
for
x
=9)
STAT
9.074766355
" œ (correlation coefficient)
STAT
0.998030525
( o (slope)
STAT
0.841121495
( n (intercept)
STAT
1.504672897
( ] (mean of
x
values)
STAT
4.75
( c (mean of
x
values)
STAT
5.5