Casio FX-CG20 AU User Manual

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u General Confidence Interval Precaution
Inputting a value in the range of 0 < C-Level < 1 for the C-Level setting sets a value you input.
Inputting a value in the range of 1 < C-Level < 100 sets a value equivalent to your input divided
by 100.
k Z Interval
u 1-Sample Z Interval
1-Sample Z Interval calculates the confidence interval for an unknown population mean when
the population standard deviation is known.
Perform the following key operations from the List Editor.
4(INTR)
1(Z)
1(1-SAMPLE)
The following shows the parameter data specification items that are different from list data
specification.
Calculation Result Output Example
u 2-Sample Z Interval
2-Sample Z Interval calculates the confidence interval for the difference between two
population means when the population standard deviations of two samples are known.
Perform the following key operations from the List Editor.
4(INTR)
1(Z)
2(2-SAMPLE)

Casio FX-CG20 AU Specifications

General

Model	FX-CG20 AU
Category	Calculator
Display Type	Color LCD
Resolution	384 x 216 pixels
Connectivity	USB
Graphing	Yes
Programming	Yes
3D Graphing	No
Spreadsheet	Yes
Equation Solver	Yes
Statistical Functions	Yes
Financial Functions	Yes
Compatibility	Windows, Mac
Dimensions	188.5 x 89 x 18.6 mm
Weight	230g
Power Supply	4 AAA batteries
Battery	AAA
Display Size	3.7 inches
Internal Memory	16MB