Casio FX-991ES Support Question
Casio FX-991ES Support Question
Find answers below for this question about Casio FX-991ES.Need a Casio FX-991ES manual? We have 2 online manuals for this item!
Question posted by edespejo03 on October 1st, 2013
How Do I Use Linear Regression
how do i use the linear regression for statistics
Current Answers
Answer #1: Posted by bernadette2013 on October 1st, 2013 8:05 AM
bernadette2013
Member since:
September 7th, 2013 Points: 485,260
Member since:
September 7th, 2013 Points: 485,260
Peform the steps given in this PDF: http://www.csu.edu.au/__data/assets/pdf_file/0003/88617/Casiofx82MSstats.pdf
Go to page number 5 where the explanation and steps are given.
Hope this solution helps.
If you find the answer helpful, kindly accept it as a Solution.
Related Casio FX-991ES Manual Pages
User Guide - Page 3
...: 1, 2, +, -, !, A, etc.
• Pressing the 1 or S key followed by the key operation (1s) before it. Example: 1s(sin-1)1=
Indicates the function that uses Math format,
while the LINE mark indicates Linear format. For details about input/output formats, see "Specifying the Input/Output Format".
• Keycap markings indicate what a key inputs or what...
User Guide - Page 9
...) displays the setup menu, which you can jump between using c and f. Select this type of operation: General calculations Complex number calculations Statistical and regression calculations Calculations involving specific number systems (binary, octal, decimal, hexadecimal) Equation solution Matrix calculations Generation of calculation that corresponds to the mode you want to execute, the...
User Guide - Page 10
... are rounded off to use "]CONT'". • See "Adjusting Display Contrast" for information about how to the specified digit before being displayed. Specifying the Input/Output Format
For this input/output format: Math Linear
Perform this key operation: 1N6(Fix)0-9 1N7(Sci)0-9 1N8(Norm)1(Norm1) or 2(Norm2)
Calculation Result Display Examples • Fix...
User Guide - Page 14
...; With Math format, you can switch to the overwrite mode. You can only use depends on the display screen. Pressing 1Y(INS) when the Math format is
selected...
E-12 See "Incorporating a Value into a Function" for Linear format input is selected. • The initial default for more information. • The calculator automatically changes to the insert mode whenever you change to make...
User Guide - Page 23
... number of digits used for a mixed fraction (including integer, numerator, denominator, and separator symbols) is greater than 10, the value is automatically displayed in decimal format.
• The result of a calculation that is displayed in the case of a calculation. Math Format
Improper Fraction
Mixed Fraction
7 3
2
1 3
('7c3) (1'(()2e1c3)
7 { 3
2 { 1 { 3
Linear Format
Numerator...
User Guide - Page 26
...history memory shows both calculation expressions and results.
Appendix
E-24
Using Calculation History Memory and Replay
Calculation history memory maintains a record of each calculation expression you used for the new calculation. When the calculation you can press A and then d or e to back-step through calculation history memory contents. If you are using Linear format, you are...
User Guide - Page 36
... to
k Integration Calculations
This calculator performs integration using Math format. • There may be used in the CMPLX Mode, as long as complex numbers are not used as constants.)
a: Integration interval lower limit b: Integration interval upper limit tol: Tolerance range (input/output format: Linear) • You can omit specification of the tolerance range. Example: ∫(0.5X2...
User Guide - Page 38
... causes
the calculation to specify ... values - differential calculation results approaching zero • Pressing A will interrupt an ongoing differential calculation. inclusion of undifferentiable... tol value that is used when you do. • ∫(, d/dx(, Pol(, Rec(, and Σ( cannot be used within f(x), a, or tol. • Differential calculations can omit specification of the...
User Guide - Page 45
Example 2: '2 ∠ 45 = 1 + i
(Angle Unit: Deg)
MATH
CMPLX
Math
!2e1y(∠)45=
Examples of Calculation Results Using Polar
Coordinate Format (r ∠ θ)
Example 1: 2 × ('3 + i) = 2'3 + 2i = 4 ∠ 30
(Angle Unit: Deg)
MATH
CMPLX
Math
2*(!3e+i)=
• With Linear format, the absolute value and argument are shown in two different lines. E-43
Example 2: 1 + i = ...
User Guide - Page 46
... are performed in the STAT Mode (N3). k Statistical Calculation Types
Key Menu Item 1 1-VAR 2 A+BX 3 _+CX2 4 In X 5 e^X 6 A•B^X 7 A•X^B 8 1/X
Statistical Calculation Single-variable Linear regression Quadratic regression Logarithmic regression e exponential regression ab exponential regression Power regression Inverse regression
k Inputting Sample Data
Displaying the STAT Editor...
User Guide - Page 47
...=
Registering a value causes the cursor to six of statistical calculation you selected. You can use the FREQ column to move down one cell.
E-45 FREQ (Frequency) Column ...the COMP Mode with Linear format. • Pressing A while inputting data clears your current input. • After inputting a value, press =.
STAT
STAT
Single-variable Statistics
Paired-variable Statistics
• The ...
User Guide - Page 49
... MinMax sub-menu of the current input/output format setting on the STAT editor screen. The STAT calculation screen also uses Linear format, regardless of commands for obtaining maximum and minimum values
E-47 Single-variable Statistics
Paired-variable Statistics
STAT Menu Items Common Items
Select this menu item: 1Type 2Data 3Edit
4Sum
5Var
6MinMax
When...
User Guide - Page 50
... when Linear
Regression Calculation (A+BX) Is Selected" and "Commands when Quadratic Regression Calculation (_+CX2) Is Selected".
See Appendix for information about the calculation
formula used for each command.
Paired-variable Menu Item
Select this menu item: When you select 4(Sum), 5(Var), 6(MinMax), or 7(Distr) on the STAT menu while a single-variable statistical calculation type...
User Guide - Page 52
Commands when Linear Regression Calculation (A+BX) Is Selected With linear regression, regression is selected as the statistical calculation type. Sum Sub-menu (11(STAT)4(Sum))
Select this menu item: 1Σx2 2Σx 3Σy2 4Σy 5&#... of the Y-data Sample standard deviation of the Y-data
E-50 See Appendix for information about the calculation
formula used for each command.
User Guide - Page 53
y = A + BX + CX 2
See Appendix for information about the calculation formula used for linear regression calculations. E-51 Reg Sub-menu (11(STAT)7(Reg))
Select this menu item: 1A 2B
3C
4m1 5m2 6n
When you want to obtain this :
1A
Regression coefficient constant term A
2B
Regression coefficient B
3r 4m 5n
Correlation coefficient r Estimated value of x Estimated value of samples...
User Guide - Page 54
...BASE-N Mode (N4).
Statistical Calculation Type
Logarithmic Regression (ln X)
e Exponential Regression (e^X)
ab Exponential Regression (A•B^X)
Model Equation
y = A + Bln X y = AeBX y = ABX
Power Regression (A•X^B) y = AXB
Inverse Regression (1/X)
y
=
A
+
B X
Calculation Formula
Appendix Comparison of Regression Curves • The following example uses the data input...
User Guide - Page 58
..., see "STAT Editor Screen Input Precautions". Simultaneous linear equations with Linear format. • Pressing A while inputting data ...clears your current input. • After inputting data, press =.This registers the value and displays up to six of its digits in the currently selected cell. • To change the contents of a cell, use...
User Guide - Page 59
... the coefficient editor screen.
• The display format of solutions is displayed. Appendix Equation Calculation: to
Matrix Calculations (MATRIX)
You can save matrices under the names "MatA", "MatB", and "MatC"...an equation solution is in matrix memory. • In the case of simultaneous linear equations, you can use the f and c keys to scroll the display between the solutions for X and...
User Guide - Page 63
...).
• Only variable X can specify either values or calculation expressions (which
must produce a numeric result) for Start, ... error.
k Start, End, and Step Value Rules
• Linear format is not generated.
• The specified Start, End, and... value, press =.
• Pressing the A key returns to be used for a number table generation function. • Note that the number table...
User Guide - Page 64
... Screen The number table screen shows x-values calculated using the
specified Start, End, and Step values, as well as the values obtained when each x-value is substituted in the function f(x). • Note that changing the input/output format settings (Math format or Linear format) on the calculator's setup screen while in the TABLE Mode...
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