Casio ClassPad 330 - Page 468

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Inverse Geometric Cumulative Distribution
Menu: [Distribution]-[Inverse Geo CD]
Description: This command calculates the inverse of the geometric cumulative
distribution.
Minimum value of the upper bound of summation which satisfies the inequality
m
=? (positive integer)
Definition of Terms
prob
: geometric cumulative probability (0 geometric cumulative probability (0
<
prob
<
1)
pos
: probability of success probability of success
p
(0
<
p
<
1)
Calculation Result Output
x
Inv : inverse geometric cumulative distribution
*
x
Inv : recalculation value (Displayed only when there may be a possiblility 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.
Example
Geometric cumulative probability : 0.875
Probability of success : 0.5
• Statistics Wizard Operation
(1) On the menu bar, tap [Calc] and then [Distribution].
(2) Select [Inverse Geo CD] and then tap [Next >>].
(3) Input values.
(4) Tap [Next >>].
u
Program, eActivity or Main Application
Command: InvGeoCD

Command Syntax
prob
value,
p
-value
Input Example:
InvGeoCD 0.875,0.5
Σ
= 1
x
m
Σ
= 1
x
m
7-11-22
Distributions
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