Casio fx-CP400 User Manual page 87

Important!
See "Important!" under "invBinomialCDf" on page 86.
Example: To determine the minimum number of trials when
= 2.26
u geoPDf [Action][Distribution/Inv.Dist][Discrete][geoPDf]
Function: Returns the probability in a geometric distribution that the success will occur on a specified trial.
Syntax: geoPDf( ,
Calculation Result Output:
Example: To determine the geometric probability when = 6,
u geoCDf [Action][Distribution/Inv.Dist][Discrete][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,
Calculation Result Output:
Example: To determine the geometric probability when lower value = 2,
upper value = 3,
u invGeoCDf [Action][Distribution/Inv.Dist][Inverse][invGeoCDf]
Function: Returns the minimum number of trials of a geometric cumulative probability distribution for specified
values.
Syntax: invGeoCDf(
Calculation Result Output: Inv, ½ Inv
Important!
See "Important!" under "invBinomialCDf" on page 86.
Example: To determine the minimum number of trials when
= 0.5
u hypergeoPDf [Action][Distribution/Inv.Dist][Discrete][hypergeoPDf]
Function: Returns the probability in a hypergeometric distribution that the success will occur on a specified
trial.
Syntax: hypergeoPDf( , ,
Calculation Result Output:
Example: Determine the hypergeometric probability when = 1,
= 10, = 20.
u hypergeoCDf [Action][Distribution/Inv.Dist][Discrete][hypergeoCDf]
Function: Returns the cumulative probability in a hypergeometric distribution that the success will occur
between specified lower value and upper value.
Syntax: hypergeoCDf(lower value, upper value, ,
Calculation Result Output:
Example: Determine the hypergeometric cumulative distribution when lower
value = 0, upper value = 1,
[ ) ]
= 0.5
, [ ) ]
, [ ) ]
= 5,
= 0.8074,
= 0.4
[ ) ]
= 0.875,
= 5,
, [ ) ]
= 10, = 20.
Chapter 2: Main Application 87