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Casio fx-991ES PLUS User Manual

Casio fx-991ES PLUS
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Distr Sub-menu ( (STAT) (Distr))
(P()
This menu can be used to calculate the
probability of standard normal distribution.
• For details see "Performing Normal
Distribution Calculations".
(Q()
(R()
( t)
MinMax Sub-menu ( (STAT) (MinMax))
Select this menu
item:
When you want to obtain this:
(minX) Minimum value
(maxX) Maximum value
Commands when Linear Regression Calculation (A+BX) Is Selected
Sum Sub-menu ( (STAT) (Sum))
Select this menu
item:
When you want to obtain this:
(∑x
2
)
Sum of squares of the X-data
(∑x)
Sum of the X-data
(∑y
2
)
Sum of squares of the Y-data
(∑y)
Sum of the Y-data
(∑xy)
Sum of products of the X-data and Y-data
(∑x
3
)
Sum of cubes of the X-data
(∑x
2
y)
Sum of (X-data squares × Y-data)
(∑x
4
)
Sum of biquadrate of the X-data
51

Table of Contents

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Casio fx-991ES PLUS Specifications

General IconGeneral
TypeScientific
CoverNo
Form factorDesktop
Control typeButtons
Product colorGray
Digits15 digits
Display typeDot-matrix
Display resolution96 x 31 pixels
Display number of lines10 lines
Storage media typeNot available
Battery life3 year(s)
Battery typeLR44
Power sourceBattery/Solar
Number of batteries supported1
Symbolic notationSquare root
Conversion betweenDecimal, Fraction, Percent
Convert angles from degrees toGradian, Radian
Random number/integer generatorYes
Weight and Dimensions IconWeight and Dimensions
Depth162 mm
Width80 mm
Height11.1 mm
Weight95 g

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