EasyManuals Logo

HP 12c Platinum Reference Guide

HP 12c Platinum
168 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #103 background imageLoading...
Page #103 background image
Statistics 103
Example 1:
A manufacturer observes declining sales of a soon-to-be obsolete product, of
which there were originally 10,000 units in inventory. The cumulative sales figures over a
number of months, given below, may be approximated by a logarithmic curve of the form
y = A + B (ln x), where y represents cumulative sales in units and x the number of months
since the beginning. How many units will be sold by the end of the eighth month?
Month
1 2 3 4 5 6
Cumulative
Sales (units)
1431 3506 5177 6658 7810 8592
12c platinum / 12C
RPN Keystrokes
12c platinum
ALG Keystrokes
Display Comments
fCLEARH fCLEARH
1431\ 1431³
1g°_ 1g°_
1.00
First pair data input.
3506\ 3506³
2g°_ 2g°_
2.00
Second pair data input.
5177\ 5177³
3g°_ 3g°_
3.00
Third pair data input.
6658\ 6658³
4g°_ 4g°_
4.00
Fourth pair data input.
7810\ 7810³
5g°_ 5g°_
5.00
Fifth pair data input.
8592\ 8592³
6g°_ 6g°_
6.00
Sixth pair data input.
gR~ gR~
0.99
Correlation coefficient
(between y and ln x).
1gR0gR 1gR0gR
1,066.15
Value of A.
~d- -~d³
4,069.93
Value of B.
8g°gR 8g°gR
9,529.34
Total units sold by end of
eighth month.

Table of Contents

Other manuals for HP 12c Platinum

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the HP 12c Platinum and is the answer not in the manual?

HP 12c Platinum Specifications

General IconGeneral
Digits10 digits
Battery typeCR2032
TypeFinancial
Form factorPocket
Weight and Dimensions IconWeight and Dimensions
Weight110 g
Dimensions (WxDxH)79 x 129 x 15 mm

Related product manuals