Texas-instruments BA II PLUS Manuel d'utilisateur Page 70
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- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
66 Statistics Worksheet
• Ln uses ln(X) and Y.
• EXP uses X and ln(Y).
• PWR uses ln(X) and ln(Y).
The calculator determines the values for
a and b that create the line or
curve that best fits the data.
Correlation Coefficient
The calculator also determines r, the correlation coefficient, which
measures the goodness of fit of the equation with the data. Generally:
•The closer
r is to 1 or -1, the better the fit.
•The closer
r is to zero, the worse the fit.
Entering Statistical Data
Because the Statistics worksheet lets you enter and display up to 50 data
points, and then stores the values until you clear the worksheet or
change the values, you probably will not have to perform every step for
each Statistics calculation.
1. To select the data-entry portion of the Statistics worksheet, press &
j. X01 is displayed along with any previous value.
2. To clear the worksheet, press & z.
3. Key in a value for X01 and press !.
• For one-variable data, X01 is the first data point.
• For two-variable data, X01 is the first X value.
4. To display the Y01 variable, press #.
5. Key in a value for Y01 and press !.
• For one-variable data, you can enter the number of times the X
value occurs (frequency).
The default value is 1.
• For two-variable data, enter the first Y value.
6. To display the next X variable, press #.
7. Repeat steps 3 through 5 until you enter all of the data points.
Note: To easily scroll up or down through a range of variables, press and
hold # or ".
- BA II PLUS™ 1
- Calculator 1
- Important Information 2
- Interference 2
- Contents 3
- Turning On the Calculator 5
- Turning Off the Calculator 5
- Selecting 2nd Functions 6
- Reading the Display 6
- RAD is not displayed 7
- Setting Calculator Formats 8
- Choosing the Angle Units 9
- Using Dates 9
- Choosing Calculation Methods 9
- Resetting Default Values 9
- Resetting the Calculator 10
- Correcting Entry Errors 11
- Math Operations 12
- Universal Power ; 13
- Scientific Notation ; 15
- Memory Operations 16
- Calculations Using Constants 17
- Last Answer Feature 18
- 2 ; 2.00 19
- Types of Worksheet Variables 21
- Enter-Only Variables 21
- Compute-Only Variables 21
- Automatic-Compute Variables 22
- Selecting Worksheet Settings 22
- Display Indicators 23
- Worksheets 25
- Clearing the Unused Variable 27
- Updating P1 and P2 28
- Computing Monthly Payments 31
- Computing Quarterly Payments 31
- Computing Future Value 32
- Computing Present Value 32
- Agreement 33
- Perpetual ordinary annuity 34
- Cash Flows 35
- With Residual Value 37
- Down Payment 40
- Specified Future Amount 41
- Amortization Schedule 42
- Computing the Monthly Payment 43
- Balloon Payment 44
- Cash Flow Worksheet 45
- Uneven and Grouped Cash Flows 46
- Entering Cash Flows 47
- Deleting Cash Flows 47
- Inserting Cash Flows 48
- Computing Cash Flows 48
- Computing NPV 49
- Computing IRR 49
- solutions can exist 50
- Entering Cash-Flow Data 51
- Editing Cash-Flow Data 51
- Bond Worksheet 55
- Bond Worksheet Variables 56
- until ACT or 360 appears 57
- Bond Worksheet Terminology 58
- SDT value and press ! 59
- Interest 60
- Depreciation Worksheet 61
- 58 Depreciation Worksheet 62
- Entering Values for LIF 63
- Entering Values for M01 63
- Working with YR 63
- Entering Depreciation Data 64
- 62 Depreciation Worksheet 66
- Statistics Worksheet 67
- Entering Data Points 68
- Regression Models 69
- Entering Statistical Data 70
- Computing Statistical Results 71
- 68 Statistics Worksheet 72
- Other Worksheets 73
- Worksheet Variables 74
- Entering Values 74
- Computing Values 74
- Interest Conversion Worksheet 76
- Resetting Variables 77
- Converting Variables 77
- Converting Interest Rates 77
- Date Worksheet 78
- Entering Dates 79
- Computing Dates 79
- Profit Margin Worksheet 80
- Computing Profit Margin 81
- Breakeven Worksheet 82
- Computing Breakeven 83
- Memory Worksheet 84
- 82 Other Worksheets 86
- Formulas 87
- Amortization 89
- Cash Flow 89
- I/Y ÷ 100 90
- Depreciation 92
- Straight-line depreciation 93
- Statistics 94
- Regressions 95
- Interest Rate Conversions 95
- Percent Change 95
- Profit Margin 96
- Breakeven 96
- Days between Dates 96
- 30/360 day-count method 97
- Error Messages 98
- Accuracy Information 99
- ‡x, LN, e 100
- Battery Information 101
- In Case of Difficulty 102
- For general information 103
- For technical support 103
- THIS WARRANTY IS VOID IF THE 104
- All Other Customers 105
- Numerics 107
- 110 Index 114
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