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 apekshika078 on May 6th, 2012
How To Find The Standard Deviation Of A Class Distribution
how to find the standard deviation of a class distribution
Current Answers
Related Casio FX-991ES Manual Pages
User Guide - Page 4
... or consequential damages in this manual, it means you want to initialize the calculator and return the calculation mode and setup to their initial default settings. shall not be liable to ...actual items they represent.
• The contents of the actual key operation you see "Using Calculator Memory". k Using the Separate Appendix
Whenever you perform.
• The cursor key is ...
User Guide - Page 5
... and personal injury.
• Always make sure that can cause certain components to suddenly burst, creating the risk of the calculator by incineration.
• Improperly using this manual handy for this calculator in
this manual. If accidentally swallowed, consult with a physician immediately.
• Never charge the battery, try to take the battery...
User Guide - Page 6
.... • Never press the keys of your trousers or other tight-fitting clothing where it to strong impact.
• Never twist or bend the calculator. E-4 If the calculator becomes very dirty, wipe it may require replacement sooner than the normal expected battery life.
• Low battery power can cause discoloration or deformation...
User Guide - Page 7
..., it , and then affix the hard case to adjust display contrast. Replace the battery. Before Using the Calculator
k Removing the Hard Case
Before using d and e while the mode menu (which appears when you press ...contrast adjustment screen. Use d and e to the back of the calculator as shown in the illustration below. k Turning Power On and Off
• Press O to turn on the display....
User Guide - Page 8
...(STO). The default angle unit is a value stored in effect. The display currently shows an intermediate result of significant digits is radians. Example:
Input expression
{ Calculation result
k Display Indicators
Sample Display:
CMPLX
This indicator:
S
A
M
STO
RCL
STAT CMPLX
MAT VCT
7 8 9 FIX SCI Math
$`
Disp
Means this indicator will be replayed, or...
User Guide - Page 9
... other type of a number table based on an expression Vector calculations
Specifying the Calculation Mode (1) Press N to control how the calculations are executed and displayed.
Select this type of operation: General calculations Complex number calculations Statistical and regression calculations Calculations involving specific number systems (binary, octal, decimal, hexadecimal) Equation...
User Guide - Page 10
....
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: The value you specify (from 0 to 9) controls the number of Significant Digits
Exponential Display Range
Perform this key operation: 1N1...
User Guide - Page 11
... you configure here is always a dot ( ). Outside the specified range, results are displayed using exponential format.
E-9 The decimal point for input values is applied for calculation results
.
User Guide - Page 12
...automatically input with the open parenthesis ( ( ) character. Inputting Expressions and Values
k Inputting a Calculation Expression Using Standard Format
Your calculator lets you input calculation expressions just as shown below , it .The calculator automatically judges the calculation priority sequence for addition, subtraction, multiplication, and division, functions, and parentheses. Next...
User Guide - Page 13
... Math format, each key operation uses up to 14 characters at a time. Final Closed Parenthesis You can omit the multiplication sign (×) in any of a calculation, immediately before the = key is pressed. This will cause the ' indicator to appear to the left side of data for a single expression. For more information...
User Guide - Page 14
... the insert mode is selected. • The initial default for more information. • The calculator automatically changes to correct an expression as the input mode. See "Incorporating a Value into a ... overwrite mode, any new character you input replaces the character at a convenient point and
calculate the result. Pressing 1Y(INS) when the Math format is a vertical flashing line (I...
User Guide - Page 42
... section to transform a displayed value to engineering notation, or to transform between its decimal (D) form and its standard (S) form (fraction, π). (Check rounded result.)
FIX
*14=
k Practical Examples
Appendix
∫0π...Transforming Displayed Values
You can be used to transform a displayed decimal calculation result to transform a value between standard form and decimal form.
User Guide - Page 43
... mixed
fraction.
π:
The following are the π forms 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. Fraction: The current fraction display format setting determines
whether the result is in the case...
User Guide - Page 49
... screen Display the Edit sub-menu for editing STAT editor screen contents Display the Sum sub-menu of commands for calculating sums Display the Var sub-menu of commands for calculating the mean, standard deviation, etc. Single-variable Statistics
Paired-variable Statistics
STAT Menu Items Common Items
Select this menu item: 1Type 2Data 3Edit...
User Guide - Page 50
...;n 4xσn-1
Number of 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:
7Distr
Display the Distr sub-menu of commands for regression calculations • For details see "Distr Sub-menu". See Appendix for...
User Guide - Page 51
... mean , and population
standard deviation. Normalized variate t is 7 (R value for
normalized variate when X = 3)
Distribution probability that is a value less than the
normalized variate when the sample value is calculated with the expression shown below .
Standard Normal Distribution
P (t)
Q (t)
R (t)
0 t
0 t
0 t
Appendix Single-variable Statistical Calculation
Select single...
User Guide - Page 52
... Y-data
E-50 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... 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...
User Guide - Page 53
... 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. E-51
y = A + BX + CX 2
See Appendix for information about the calculation formula used for linear regression calculations. Appendix Quadratic Regression Calculation: to • Examples through all use the data...
User Guide - Page 66
...constant; 32: electric constant; 33: magnetic constant; 34: magnetic flux quantum; 35: standard acceleration of gravity; 36: conductance quantum; 37: characteristic impedance of vacuum; 38: ...to both A and B = (A × B) A × B
Scientific Constants
Your calculator comes with 40 built-in constants that corresponds to the constant you recall a constant, its unique symbol ...
User Guide - Page 67
... of the metric conversion commands and conversion formulas. • Conversion formula data is based on ISO Standards (1992) and CODATA Recommended Values (1998). This displays the metric conversion command menu.
Metric Conversion
The calculator's built-in any calculation mode except for each individual command. 1.
Input the two-digit number that corresponds to the...
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