HP 12c Solutions Handbook page 101

5. Press
6. Press
7. To make a y-estimate, key in the x-value and press
Example 1: A stock's price in history is listed below. What effective growth
rate does this represent? If the stock continues this growth rate, what is
the price projected to be at the end of 1982 (year 7)?
Keystrokes
CLEAR
45 1
51.5 2
53.75 2
80 2
122.5 2
210 2
1
0
1
7
For repeated use of this routine, the following HP-12C program will be
useful.
KEYSTROKES
to obtain B.
1 to obtain the effective growth rate (as a decimal).
End of
Price
Year
1976(1) 45
1977(2) 51.5
1978(3) 53.75
1979(4) 80
1980(5) 122.5
1981(6) 210
1982(7) ?
Display
1.00
2.00
3.00
4.00
5.00
6.00
0.95
27.34
0.31
0.36
232.35
100
First data pair input.
Second data pair input.
Third data pair input.
Fourth data pair input.
Fifth data pair input.
Sixth data pair input.
Correlation coefficient (between ln
y and x).
A
B
Effective growth rate.
Projected price at end of year 7
(1982).
DISPLAY
.