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Texas Instruments TI-36X Solar User Manual

Page 15

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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