Casio FX-991ES Support Question
Casio FX-991ES Support Question
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Question posted by wmuJa on April 11th, 2014
How To Calculate Standard Deviation On Casio Scientific Calculator 991es
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Related Casio FX-991ES Manual Pages
User Guide - Page 4
... are for any claim of how a key operation to change without notice. • In no event shall CASIO Computer Co., Ltd. E-2 • The following procedure when you want to initialize the calculator and return the calculation mode and setup to the separate Appendix. REPLAY
• The displays and illustrations (such as key markings...
User Guide - Page 5
... manual. Never expose the battery to direct heat or dispose of it by burning it.
Doing so can result in
this manual handy for this calculator in personal injury or material damage if ignored.
Caution
This symbol is used to indicate information that the battery's positive k and negative l ends are facing...
User Guide - Page 6
...the case. Doing so can remove printed markings and can cause discoloration or deformation of the calculator's case, and damage to internal circuitry.
• Avoid use and storage of battery ...slow display response, total failure of the display, and shortening of the calculator in a weak solution of the calculator. Wring out all important data.
• Avoid use thinner, benzene or...
User Guide - Page 7
...does not improve display readability, it , and then affix the hard case to the back of the calculator as shown in the illustration below.
k Adjusting Display Contrast
1N(SETUP)c6(]CONT') This displays the... contrast adjustment screen.
k Turning Power On and Off
• Press O to turn off the calculator. After the setting is the way you press N) is low. Use d and e to turn on the...
User Guide - Page 8
...S key. The default angle unit is more data above/below the current screen. Calculation history memory data is available and can be exited and this indicator will disappear when...this indicator will disappear when you press t.
k About the Display
Your calculator has a 31-dot × 96-dot LCD screen.
The calculator is a value stored in the CMPLX Mode. There is in independent ...
User Guide - Page 9
...
When you want to display the mode
menu. 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 perform this mode:
COMP CMPLX
STAT
BASE...
User Guide - Page 10
...to be displayed in a single line.
• See "Adjusting Display Contrast" for displayed calculation results. Math
Math Format
Linear Format
Specifying the Default Angle Unit
To specify this as ...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: The value you specify (from 0 to 9) controls the ...
User Guide - Page 11
only. E-9 Outside the specified range, results are displayed using exponential format. The decimal point for calculation results
.
Norm1: 10-2 > x, x > 1010 Norm2: 10-9 > x, x > 1010
Example: 1 ÷ 200 = 5 × 10-3 (Norm1) 0.005 (Norm2)
Specifying the ...
User Guide - Page 12
... Format Complex Number Format Statistical Display Decimal Point
Is initialized to input the argument and the closing parenthesis ()). Inputting Expressions and Values
k Inputting a Calculation Expression Using Standard Format
Your calculator lets you need to this: COMP MthIO Deg Norm1 d/c a+bi OFF Dot
• To cancel initialization without doing anything, press A(Cancel) instead of...
User Guide - Page 13
... ' indicator to appear to the right of data for a single expression.
Inputting the 15th character causes the expression to shift to the left side of a calculation, immediately before the = key is pressed. A function that the input procedure is displayed, you input uses up to 14 characters at the end of the...
User Guide - Page 42
...displayed value to engineering notation, or to transform between its decimal (D) form and its standard (S) form (fraction, π). Formats Supported for S-D Transformation S-D transformation can use... notation.
Transforming Displayed Values
You can be used to transform a displayed decimal calculation result to the right. k Using Engineering Notation
A simple key operation transforms ...
User Guide - Page 43
...This is limited to inverse trigonometric function results and values that are normally expressed in radians.
• After obtaining a calculation result in ' form, you transform from decimal form to standard form, the calculator automatically decides the standard form to use. nπ (n is an integer.)
d c
π
or
a
b c
π
(depending setting)
on
fraction
display
format
•...
User Guide - Page 49
... Menu
While the STAT editor screen or STAT calculation screen is displayed switches to display the STAT menu. Pressing the A key while the STAT editor screen is on the display.
Deleting All STAT Editor Contents (1) Press 11(STAT)3(Edit). (2) Press 2(Del-A).
• This clears all of commands for calculating the mean, standard deviation, etc.
User Guide - Page 50
... samples Mean of the sample data Population standard deviation Sample standard deviation
MinMax Sub-menu (11(STAT)6(MinMax))
Select this menu item: 1minX 2maxX
When you want to do 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 is selected. See Appendix for...
User Guide - Page 51
...
the probabilities shown below , using insert and delete:
{0, 1, 2, 3, 4, 5, 6, 7, 9, 10}
(FREQ: ON)
Edit the FREQ data to the following , using the mean , and population
standard deviation.
Calculate number of
the sample data.
Distr Sub-menu (11(STAT)7(Distr))
1 P( 2 Q( 3 R( 4 't
This menu can be used to the following :
{1, 2, 1, 2, 2, 2, 3, 4, 2, 1}
(FREQ: ON)
•...
User Guide - Page 52
...commands that appear on the STAT menu while linear regression is selected as the statistical calculation type. Sum Sub-menu (11(STAT)4(Sum))
Select this menu item: 1Σx2... Mean of the X-data Population standard deviation of the X-data Sample standard deviation of the X-data Mean of the Y-data Population standard deviation of the Y-data Sample standard deviation of the Y-data
MinMax Sub-...
User Guide - Page 53
... of y
• Sum sub-menu (sums), Var sub-menu (number of y
Appendix Linear Regression Calculation: to
• Examples through all use the data input in accordance with the following model equation. Reg... r Estimated value of x Estimated value of samples, mean, standard deviation), and MinMax sub-menu (maximum value, minimum value) operations are the same those for each command.
User Guide - Page 66
...(Calculation example using VctAns...calculation mode except for BASE-N. • To recall a scientific constant, press 17(CONST). This displays
the scientific constant menu. Appendix
Store VctA = (1, 2) and VctC = (2, -1, 2). You can use the vectors input in scientific calculations...Scientific Constants
Your calculator comes with 40 built-in constants that are all of the built-in scientific...scientific...
User Guide - Page 67
...left to another.
Technical Information
k Calculation Priority Sequence
The calculator performs calculations according to a calculation priority sequence. • Basically, calculations are based on the "NIST Special ...commands and conversion formulas. • Conversion formula data is based on ISO Standards (1992) and CODATA Recommended Values (1998). To recall a metric conversion ...
User Guide - Page 68
.... Statistical estimated value calculation: m, n, m1, m2
6. Permutations, combinations: nPr, nCr Complex polar form symbol: ∠
7. Logical AND: and
11. This is because x2 is a function preceded by a value (Priority 2, above), whose priority is greater than the negative sign, which is omitted: Multiplication sign omitted immediately before π, e, variables, scientific constants (2π, 5A...
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