(12C Platinum) Statistics

[Gamo]

The Curve Fitting program examples are from
HP-11C Owner's Handbook start from Page 162

Example 1:
(Exponential, Code = 1)

Data:
Xi (0.72, 1.36, 1.95, 2.58, 3.14)
Yi (2.16, 1.61, 1.16, 0.85, 0.5)

Solution:
a = 3.45, b = -0.58
r^2 = 0.98


Keystrokes using HP-12C Platinum

f [REG] f [∑] f [PRGM] 1 [R/S] display 1.00 // 1.00 indicated that now is on Program#1

2.16 [ENTER] .72 [R/S] display 1.00
1.61 [ENTER] 1.31 [R/S] display 2.00
1.16 [ENTER] 1.5 [R/S] display 3.00
.85 [ENTER] 2.58 [R/S] display 4.00
.5 [ENTER] 3.14 [R/S] display 5.00

0 [R/S] display Correlation coefficient momentary ....... -0.99

Display A momentary ...... 3.45
Display B momentary ...... -0.58
Display growth rate ...... -44.12%

For X = 1.5

1.5 [R/S] display ŷ = 1.44

To find another X simply enter X value and [R/S] display ŷ

To run a new problem press f [REG] f [∑] f [PRGM] 1 [R/S]


Gamo