HP 20b Business Consultant Financial Calculator User Manual Page 78
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Statistical Operations70
The Data and Stats Menus
Statistics analysis functions are located in the Data and Statistics menus accessible with the
:y and :z keys. See Figure 1 for assistance with navigating through the
menus.
Press
:y to open the Data menu. In this menu, enter a list of x values for one-variable
statistics, a list of pairs, (x, F) for one-variable statistics with frequency, or a list of pairs, (x, y)
for two-variable statistics. To enter data, key in a number and press
I.
Press :z to analyze the data. If you attempt to open the Statistics (Stats) menu before
entering data, you will be redirected to the Data menu. When opened, the Stats menu
displays 2 Vars for two-variable statistics. Press I repeatedly to select the type of
statistical operations desired, two-variable, (2 Vars), one-variable, (1 Var), or one-variable
with frequency (1 Freq).
After selecting the type of statistical operation you want, select a sub-menu by pressing <
or >, and press I to open it. Once in a sub-menu, press < or >
repeatedly to view the results. To return from the sub-menu to the Statistics menu, press
:z.
NOTE: in one-variable modes, there are no items for y, and the Predictions sub-menu is not
available.
Pressing I with the Predictions sub-menu displayed opens a sub-menu, in which you
can choose among seven different types of regression lines. See Figure 1. To select a specific
type of regression line in the Predictions sub-menu, press I to cycle through the
options.
NOTE: if you press =, the calculator automatically selects the curve that is the best fit for
your data.
Once you select a regression line, press < to see the regression line parameters and
perform predictions.
Table 12-1 The Statistics Menu Items
Menu Item Description
Nb Item Number of items.
Mean
Average of
x values.
Mean
Average of
y values.
x Std. Dev Standard deviation for x: a measure of how dispersed the x data values are about
the mean.
X
Y
- HP 20b Business Consultant 1
- HP 30b Business Professional 1
- Legal Notice 2
- Keyboard Map Legend 5
- Table of Contents 7
- Selecting a Language 9
- Two Line Display 10
- until the 11
- <<< 12
- << 12
- Basic Features 13
- Annunciators 14
- The Input Key 14
- The Equals Key 14
- Editing and Clearing Entries 15
- The On/CE Key 15
- The Reset Menu 15
- Notes about Special Menus 16
- Memory and the Memory Menu 16
- Accessing Menus and Menu Maps 16
- or > 17
- returns 17
- with that 17
- Basic Features10 18
- Mathematical Functions 19
- Number Entry and Display 19
- Chain Mode 20
- Algebraic Mode 20
- I or = are valid 21
- I, this 22
- + changes the 22
- <<<< 23
- Mathematical Calculations 25
- Mathematical Calculations18 26
- Random number 27
- The Math Menu 27
- I on any of these items to 28
- The Probability Sub-menu 29
- Binomial Functions 31
- Two-Number Functions 31
- Storing and Recalling Numbers 32
- Recall Arithmetic 32
- returns 0.25 33
- % to add or subtract x % 34
- - returns 150, or 200-25% 34
- 3 Time Value of Money 35
- :x. Press < or > 37
- A. The Amortization 37
- V, M and [ 37
- A followed by < or 38
- I to reset, or O to cancel 40
- :& 41
- O once again 42
- Canadian Mortgage Example 44
- as 1 is the default 45
- Cash Flow Example 46
- P and IRR R 49
- Cash Flows42 50
- Editing Cash Flows 52
- Sample Cash Flow Diagrams 54
- = to calculate it 56
- Bond Calculation Example 57
- O again to exit the menu 58
- :(HOLD)B 59
- The Black-Scholes Menu 60
- (the Black-Sholes key) 60
- = in the 61
- to scroll through the menu 62
- :(HOLD) B 63
- to scroll to the 64
- 8 Date Calculation 65
- 9Break-even 67
- The Percent Calculation Menu 69
- repeatedly to scroll to the 69
- Percent Calculation Examples 70
- to reset the menu, or O to 72
- 11 D e p r e c i a t i o n 73
- The Depreciation Menu 74
- Depreciation Example 75
- 12 Statistical Operations 77
- The Data and Stats Menus 78
- Statistics Example 80
- :z<< 82
- 13 Programming 83
- : and simultaneously 83
- : >or< 84
- Programming Example 85
- Program Step 0 86
- : and the < 87
- Programming80 88
- Figure 2 88
- (HOLD) 89
- Sub-Function Call 90
- and (HOLD) functions 90
- .05003:$1 91
- Messages 92
- (HOLD) . If you want to 93
- Programming86 94
- Table 13-4 94
- Digit Description 94
- Programming88 96
- 14 E rro r M e s s a g e s 97
- Replacing the Batteries 99
- Regulatory Information 100
- Modifications 101
- Canadian Notice 101
- Avis Canadien 101
- Japanese Notice 102
- Korean Notice 102
- Contact Information 103
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