Casio fx-CP400 - Page 85

Chapter 2: Main Application 85
u chiCDf [Action][Distribution/Inv.Dist][Continuous][chiCDf]
Function: Returns the cumulative probability of a χ
2
distribution between a lower bound and an upper bound.
Syntax: chiCDf(lower value, upper value,
df [ ) ]
Calculation Result Output:
prob
Example: To determine the χ
2
probability when lower value = 2.7,
upper value = ∞, df = 4
u invChiCDf [Action][Distribution/Inv.Dist][Inverse][invChiCDf]
Function: Returns the lower bound value of a χ
2
cumulative distribution probability for specified values.
Syntax: invChiCDf(
prob, df [ ) ]
Calculation Result Output:
xInv
Example: To determine the lower bound value when prob = 0.6092146, df = 4
u fPDf [Action][Distribution/Inv.Dist][Continuous][fPDf]
Function: Returns the F probability density for a specified value.
Syntax: fPDf(
x , n : df , d : df [ ) ]
Calculation Result Output:
prob
Example: To determine the F probability density when x = 1.5, n : df = 24,
d : df = 19
u fCDf [Action][Distribution/Inv.Dist][Continuous][fCDf]
Function: Returns the cumulative probability of an F distribution between a lower bound and an upper bound.
Syntax: fCDf(lower value, upper value,
n : df , d : df [ ) ]
Calculation Result Output:
prob
Example: To determine the F distribution probability when lower value = 1.5,
upper value = ∞, n : df = 24, d : df = 19
u invFCDf [Action][Distribution/Inv.Dist][Inverse][invFCDf]
Function: Returns the lower bound value of an F cumulative distribution probability for specified values.
Syntax: invFCDf(
prob , n : df , d : df [ ) ]
Calculation Result Output:
x Inv
Example: To determine the lower bound value when
prob = 0.1852, n : df = 24,
d : df = 19
u binomialPDf [Action][Distribution/Inv.Dist][Discrete][binomialPDf]
Function: Returns the probability in a binomial distribution that the success will occur on a specified trial.
Syntax: binomialPDf(
x , numtrial value, pos [ ) ]
Calculation Result Output: prob
Example: To determine the binomial probability when x = 5, numtrial value = 3,
pos = 0.63