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Casio CLASSPAD 330 3.04 User Manual

Page 215

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20090601

Example: To determine the minimum number of trials when

prob

= 0.8074,

L = 2.26

Menu Item: [Action][Inv. Distribution][invPoissonCDf]

For more information, see “Inverse Poisson Cumulative Distribution” on page 7-11-19.

S geoPDf

Function: Returns the probability in a geometric distribution that the success will occur on

a specified trial.

Syntax: geoPDf(

x

,

pos

[ ) ]

Example: To determine the geometric probability when

x

= 6,

pos

= 0.4

Menu Item: [Action][Distribution][geoPDf]

For more information, see “Geometric Distribution Probability” on page 7-11-20.

S geoCDf

Function: Returns the cumulative probability in a geometric distribution that the success

will occur between specified lower value and upper value.

Syntax: geoCDf(lower value, upper value,

pos

[ ) ]

Example: To determine the geometric probability when lower value = 2, upper value = 3,

pos

= 0.5

Menu Item: [Action][Distribution][geoCDf]

For more information, see “Geometric Cumulative Distribution” on page 7-11-21.

S invGeoCDf

Function: Returns the minimum number of trials of a geometric cumulative probability

distribution for specified values.

Syntax: invGeoCDf(

prob

,

pos

[ ) ]

Important!

When executing the invGeoCDf function the calculator uses the specified

prob

value

and the value that is one less the

prob

value minimum number of significant digits (*

prob

value) to calculate minimum number of trials values. The results are assigned to the
system variables

xInv

(calculation result using

prob

) and *

xInv

(calculation result using

*

prob

). The invGeoCDf function always returns the

xInv

value only. However, when the

xInv

and *

xInv

values are different, the warning message shown below appears showing

both values.

2-8-55

Using the Action Menu