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.
"
( [
4 . 5 ( \ 2 4
9 . 9 4
2 . 3 4
9 ( q (predict y for x=9)
" œ (correlation coefficient)
( o (slope)
( n (intercept)
( ] (mean of x values)
( c (mean of x values)
STAT
STAT
STAT
STAT
STAT
STAT
STAT
STAT
STAT
STAT
STAT
14
9.074766355
0.998030525
0.841121495
1.504672897
4.75
5.5
0.
0.
2.
3.
4.