BA II PLUS™ PROFESSIONAL Calculator

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• 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 ". 68 Statistics Worksheet
Computing Statistical Results Selecting a Statistics Calculation Method 1. Press & k to select the statistical calculation portion of the Statistics worksheet. 2. The last selected statistics calculation method is displayed (LIN, Ln, EXP, PWR, or 1-V). 3. Press & V repeatedly until the statistics calculation method you want is displayed. 4. If you are analyzing one-variable data, select 1-V. 5. Press # to begin computing results. Computing Results To compute results based on the current data set, press # repeatedly after you have selected the statistics calculation method. The calculator computes and displays the results of the statistical calculations (except for X' and Y') automatically when you access them. For one-variable statistics, the calculator computes and displays only the values for n, v, Sx, sX, GX, and GX 2 . Computing Y' 1. To select the Statistics worksheet, press & k. 2. Press " or # until X' is displayed. 3. Key in a value for X' and press !. 4. Press # to display the Y' variable. 5. Press % to compute a predicted Y' value. Computing X' 1. To select the Statistics worksheet, press & k. 2. Press " or # until Y' is displayed. 3. Key in a value for Y' and press !. 4. Press " to display the X' variable. 5. Press % to compute an X' value. Statistics Worksheet 69
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BA II PLUS PROFESSIONAL Calculator
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Table of Contents 1 Overview of Cal
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1 Overview of Calculator Operations
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The indicators along the top of the
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Changing the number of decimal plac
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To clear The prompted worksheet and
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To Press Display Find natural antil
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For example, working in the Bond wo
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• Memory arithmetic changes only
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To Press Display Key in a new calcu
Page 21 and 22: Accessing Prompted-Worksheet Variab
Page 23 and 24: Display Indicators • The indicat
Page 25 and 26: 2 Time-Value-of-Money and Amortizat
Page 27 and 28: • To generate an amortization sch
Page 29 and 30: • In worksheet modes the calculat
Page 31 and 32: To Press Display Enter loan amount.
Page 33 and 34: Example: Computing Present Value in
Page 35 and 36: Perpetual annuity due Because the t
Page 37 and 38: To Press Display Compute present va
Page 39 and 40: To Press Display Return to standard
Page 41 and 42: To Press Display Compute loan amoun
Page 43 and 44: To Press Display Display 2nd year a
Page 45 and 46: 3 Cash Flow Worksheet Use the Cash
Page 47 and 48: Uneven and Grouped Cash Flows Uneve
Page 49 and 50: 1. Press # or " to select the cash
Page 51 and 52: The time line reflects a sequence o
Page 53 and 54: Computing NPV, NFV, PB, and DPB Use
Page 55 and 56: To Press Display Enter third group
Page 57 and 58: 4 Bond Worksheet The Bond worksheet
Page 59 and 60: Entering Dates • Use the followin
Page 61 and 62: edemption value (RV). If necessary,
Page 63 and 64: 5 Depreciation Worksheet The Deprec
Page 65 and 66: Entering Values for DB and DBX If y
Page 67 and 68: To Press Display Enter life in year
Page 69 and 70: 6 Statistics Worksheet The Statisti
Page 71: • When you enter data for one-var
Page 75 and 76: 7 Other Worksheets The calculator a
Page 77 and 78: 3. To enter values for the known va
Page 79 and 80: Comparing the Nominal Interest Rate
Page 81 and 82: Note: The calculator categorizes va
Page 83 and 84: Variable Key Display Variable Type
Page 85 and 86: Computing Breakeven 1. To access th
Page 87 and 88: • To view the contents of the mem
Page 89 and 90: A Appendix — Reference Informatio
Page 91 and 92: FV = PMT × G ---------------------
Page 93 and 94: Bonds 1 Price (given yield) with on
Page 95 and 96: where Duration is calculated using
Page 97 and 98: Standard deviation with n-1 weighti
Page 99 and 100: where: M1 =month of first date DT1
Page 101 and 102: Error Error 5 No solution exists Er
Page 103 and 104: Priority 4 Q, P 5 +, - 6 ) 7 (lowes
Page 105 and 106: Difficulty The calculator does not
Page 107 and 108: This Texas Instruments electronic p
Page 109 and 110: Index Symbols #PD (number of period
Page 111 and 112: DPB (discounted payback) 41, 45 DT1
Page 113 and 114: MOD (modified internal rate of retu
Page 115 and 116: indicator 3 Quit 2 SEL (selling pri
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BA II PLUS™ PROFESSIONAL Calculator

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