Casio fx 991MS Support Question
Casio fx 991MS Support Question
Find answers below for this question about Casio fx 991MS - Scientific Display Calculator.Need a Casio fx 991MS manual? We have 1 online manual for this item!
Question posted by mariAI on August 2nd, 2014
Casio Fx-991ms How To Calculate Standard Deviation
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Related Casio fx 991MS Manual Pages
User Guide - Page 1
E
http://world.casio.com/edu_e/ fx-95MS fx-100MS fx-115MS (fx-912MS) fx-570MS fx-991MS
User's Guide
kfx-912MS owners
Please be sure to read the important notice of this manual.
User Guide - Page 3
Removing and Replacing the Calculator's Cover
• Before starting .....1 Holding the cover as shown in the illustration, slide the unit out of the cover. • After you are finished .....2 ...the illustration, slide the unit out of the cover. • Always slide the keyboard end of the unit into the cover
first. Never slide the display end of the unit into the cover.
.....1
.....2
1
User Guide - Page 4
...and personal injury.
• The displays and illustrations (such as key markings) shown in a safe place where it . Batteries
• After removing the battery from the calculator, put it in this User's Guide... this manual. Caution
This symbol is used to use the calculator for later reference. Keep this manual handy for a long time (fx-95MS/100MS/570MS). • Use only the type of fire...
User Guide - Page 5
... for the fx115MS/fx-570MS/fx-991MS, or at least once every two years for special, collateral, incidental, or consequential damages in connection with this manual are subject to change without notice. • In no event shall CASIO Computer Co., Ltd. Heat can leak, causing damage to and malfunction of the calculator's case, and damage...
User Guide - Page 7
... Display Formats 10 kDecimal Point and Separator Symbols 11 k Initializing the Calculator 11
Basic Calculations 11
k Arithmetic Calculations 11 kFraction Operations 12 kPercentage Calculations 14 kDegrees, Minutes, Seconds Calculations 15 kFIX, SCI, RND 15
Memory Calculations 16
kAnswer Memory 16 kConsecutive Calculations 17 kIndependent Memory 17 k Variables 17
Scientific...
User Guide - Page 8
... and
Permutation/Combination 20 kAngle Unit Conversion 21
kCoordinate Conversion (Pol (x, y), Rec (r 21
kEngineering Notation Calculations 22
Equation Calculations 22
kQuadratic and Cubic Equations 22 kSimultaneous Equations 24
Statistical Calculations 26
Standard Deviation 26 Regression Calculations 28
Technical Information 32
kWhen you have a problem 32 kError Messages 32 kOrder of...
User Guide - Page 9
...displayed every three digits when the integer part of other models should refer to view both the calculation formula and its result at the same time.
• The upper line shows the calculation....
fx-95MS Modes
To perform this type of calculation:
Perform this To enter key operation: this mode:
Basic arithmetic calculations F 1
COMP
Standard deviation
F 2
SD
Regression calculations
F...
User Guide - Page 13
ting, press the F key a number of calculations must be enclosed within parentheses. fx-95MS:
1 r
Other Models: 1 r r
• Press the number key (1 or 2) that corresponds to
the setting you want to use the display setup (Disp) screen to specify the symbols you
want for the decimal point and 3-digit separator. • To change the decimal...
User Guide - Page 15
Disp
1
• Display the selection screen. fx-95MS:
1
Other Models: 1 r
• Press the number key (1 or 2) that corresponds to
the setting you want to specify the display format when a fraction calculation result is greater than one.
• To change the fraction display format, press the q key a number of times until you reach the setup screen shown...
User Guide - Page 20
... times until you want to appear on the display before starting the next calculation.
• π = 3.14159265359
k ...calculations may take a long time to complete.
• Wait for the result to perform basic arithmetic calculations. A B 1(Mcl) =
• Example: 193.2 Ö 23 ҃ 8.4
193.2 Ö 28 ҃ 6.9 193.2 A j 1 \ 23 = p 1 \ 28 =
Scientific Function Calculations...
User Guide - Page 22
...҃ 1.988647795
7 A H 123 =
• Example 4: 123 ѿ 302 ҃ 1023
123 + 30 K =
• Example 5: 123 ҃ 1728
12 N * =
* A N in the case of fx-570MS/fx-991MS.
• Example 6: 1 ҃ 12
1 3
ȕ
1 4
R 3 a , 4 a T a =
• Example 7: 8! ҃ 40320
8 A f =
• Example 8: To generate a random number between
0.000 and 0.999
A M =
0.66400
(The above...
User Guide - Page 23
... convert rectangular coordinates (1, 3) to polar coordinates (r,) (Rad)
r ҃ 2
f* 1 P L 3 T =
* A f in the case of .
21 * A n in the case of fx-100MS/fx-115MS/fx-570MS/
fx-991MS.
θ ҃ 1.047197551
0 o
• Press 0 n to display the value of r, or 0 o to display the value of fx-100MS/fx-115MS/fx-570MS/ fx-991MS.
k Angle Unit Conversion • Press A v to...
User Guide - Page 24
...to milligrams
→ 81.25 ҂10 -3 (mg)
0.08125 = J
Equation
EQN
Calculations
The EQN Mode lets you
should scroll to
0.
Arrow indicates
direction you solve equations up to...F 1 (fx-95MS) F F F 1 (Other Models)
k Quadratic and Cubic Equations
Quadratic Equation: ax2 + bx + c = 0 Cubic Equation: ax3 + bx2 + cx + d = 0 Entering the EQN Mode and pressing r displays the initial ...
User Guide - Page 28
SD F 2 (fx-95MS) F F 1 (Other Models)
• Always start data input with A B 1(Scl) = to perform statistical calculations using standard deviation. tions noted nearby.
S
• Input data is used to that point is indicated on the display (n value).
54 S 51 S 55 S 53 S S 54 S 52 S
Sample Standard Deviation (σnҀ1) = 1.407885953
A X 3 =
26 To recall this key operation:...
User Guide - Page 29
...The message "Data Full" appears and you want to perform some other operation (calculation, recall
of statistical calculation results, etc.), you should always press the t key first to be able to...press the = key to display the screen shown below. tor memory. If this happens, press the = key to replace the old value with the new one.
Population Standard Deviation (σn) = 1.316956719...
User Guide - Page 30
... data in memory. Press 1 if you want to register the value you just input, without registering the value you want to perform statistical calculations using regression. REG F 3 (fx-95MS) F F 2 (Other Models)
• Entering the REG Mode displays screens like the ones shown below. If you do this, however, you will be able to...
User Guide - Page 34
...the following steps.
1. Check the formula you always keep written copies of the same data us- k Error Messages
The calculator is locked up while an error message is on
32
Press A B 2(Mode) = to confirm it is correct.
...
necessarily that shown above.
• Precautions when editing data input for standard devia- If the above results can also input multiple entries of all important data.
User Guide - Page 37
...8226; Operations enclosed in parentheses are performed from
right to their precedence during calculations.
* fx-100MS/fx-115MS/fx-570MS/fx-991MS only. ** fx-570MS/fx-991MS only. • Operations of the matrix stack. Squaring a matrix, cubing a matrix, or inverting a matrix uses one stack level. (fx-570MS, fx-991MS only)
• Example:
1
23
45
123 4
56 7
Numeric Stack 12 23 34 45...
User Guide - Page 40
... place with the six screws. 6 Press 5 to turn power off. Power Supply (fx-95MS only)
Users of internal consecutive calculations that battery power is low. This calculator is also true of other models should refer to turn power on the display of the calculator indicate that are performed in the case of ^(xy), x y , x!, 3 , nPr, nCr...
User Guide - Page 41
... not perform any operation for fx-912MS owners The names fx-912MS (Japan domestic model name) and fx-115MS (international model name) apply to the description of fx-115MS.
39 Specifications (fx-95MS only)
Users of other models should refer to the same model. Owners of flashing cursor. u Auto Power Off
Calculator power automatically turns off...
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