7-11-24

Distributions

Example

Specified trial: 1

Number of trials from population: 5

Number of successes in population: 10

Population size: 20

Statistics Wizard Operation

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

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

(3)Input values.

(4)Tap [Next >>].

(5)To display the graph, tap .

SProgram, eActivity or Main Application

Command: HypergeoPD:h

Command Syntax

x value, n value, M value, N value

Input Example:

HypergeoPD 1,5,10,20

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

Hypergeometric Cumulative Distribution

Menu: [Distribution]-[Hypergeometric CD]

Description: This command calculates the probability the random variable that follows a hypergeometric distribution will fall between given lower bound and upper bound values.

Upper

×N–MCn–i

prob = MCi

i=Lower

NCn

Definition of Terms

Lower : lower bound (Lower Upper integer)

Upper : upper bound (Lower Upper integer)

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

prob: hypergeometric cumulative probability

Example

Lower bound: 0

Upper bound: 1

Number of trials from population: 5

Number of successes in population: 10

Population size: 20

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