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Example
Lower bound : 2
Upper bound : 3
Probability of success : 0.5
• Stati tic Wizard Operation
(1) On the menu bar, tap [Calc] and then [Distribution].
(2) Select [Geometric CD] and then tap [Next >>].
(3) Input values.
(4) Tap [Next >>].
(5) To display the graph, tap
Program, eActivity or Main Application
Command: GeoCD
Command Syntax
Lower value, Upper valu
Input Example:
GeoCD 2,3,0.5
Inver e Geometric Cumulative Di tribution
Menu:
[Inv. Distribution]-[Inverse Geo CD]
De cription: This command calculates the inverse of the geometric cumulative
distribution.
m
m
x
x
=
=
1
1
This command returns the minimum value (positive integer) of m ( upper
bound) that satisfies the inequality formula above.
Definition of Term
prob
: geometric cumulative probability (0
pos
: probability of success
Calculation Re ult Output
x
Inv : inverse geometric cumulative distribution
x
*
Inv : recalculation value (Displayed only when there may be a possibility of
rounding error.)
• To account for possible rounding error, ClassPad additionally obtains the
result using the probability that is next lowest for the least significant digit.
For example, if the probability is 0.875, ClassPad would recalculate using 0.874.
The recalculation result is only shown if it is different from the original one.
7-11-22
Distributions
.
pos
e
,
value
prob
p
p
(0
1)
20090601
Graphing may take a long
Graphing may take a long
time when the absolute value
time when the absolute value
of the argument is large.
of the argument is large.
1)
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