ClassPad 330 Plus Manual

20090601
u binomialCDf
Function: Returns the cumulative probability in a binomial distribution that the success
will occur between specified lower value and upper value.
Syntax: binomialCDf(lower value, upper value, numtrial value,
pos [ ) ]
Example: To determine the binomial cumulative probability when lower value = 2, upper
value = 5, numtrial value = 3,
pos = 0.63
Menu Item: [Action][Distribution][binomialCDf]
For more information, see “Binomial Cumulative Distribution” on page 7-11-15.
u invBinomialCDf
Function: Returns the minimum number of trials of a binomial cumulative probability
distribution for specified values.
Syntax: invBinomialCDf(
prob, numtrial value, pos [ ) ]
Important!
When executing the invBinomialCDf 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 invBinomialCDf 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.
The calculation results of invBinomialCDf are integers. Accuracy may be reduced when
the first argument has 10 or more digits. Note that even a slight difference in calculation
accuracy affects calculation results. If a warning message appears, check the displayed
values.
Example: To determine the minimum number of trials when
prob = 0.609, numtrial
value = 5, pos = 0.63
Menu Item: [Action][Inv. Distribution][invBinomialCDf]
For more information, see “Inverse Binomial Cumulative Distribution” on page 7-11-16.
2-8-53
Using the Action Menu