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Distributions

Statistics Wizard Operation

(1)On the menu bar, tap [Calc] and then [Distribution].

(2)Select [Hypergeometric CD] and then tap [Next >>].

(3)Input values.

(4)Tap [Next >>].

(5)To display the graph, tap .

SProgram, eActivity or Main Application

Command: HypergeoCD:

Graphing may take a long time when the absolute value of the argument is large.

Command Syntax

Lower value, Upper value, n value, M value, N value

Input Example:

HypergeoCD 0,1,5,10,20

Inverse Hypergeometric Cumulative Distribution

Menu: [Inv. Distribution]-[Inverse Hypergeometric]

Description: This command calculates the inverse of the hypergeometric cumulative distribution.

X

×N–MCn–i

prob H MCi

i=0

NCn

This command returns the minimum value (positive integer) of X (3 upper bound) that satisfies the inequality formula above.

Definition of Terms

prob : hypergeometric cumulative probability (0 prob 1)

n : number of trials from population (0 n integer)

M : number of successes in population (0 M integer)

N : population size (n N, M N integer)

Calculation Result Output

xInv : inverse hypergeometric cumulative distribution

*xInv : recalculation value (Displayed only when there is the possibility of rounding error.)

To account for possible rounding error, ClassPad also obtains the result using the probability that is next lowest for the least significant digit. For example, if the probability is 0.3, ClassPad would recalculate using 0.29. The recalculation result is only shown if it is different from the original one.

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