IStatistics.BinomDist

Syntax

BinomDist(Successes: Integer; Trials: Integer; Probability: Double; Cumulative: Boolean): Double;

Parameters

Successes. Number of succeeded trials.

Trials. Number of independent trials.

Probability. Success probability for each trial. This value should meet the following constraint: 0 <= Probability <= 1.

Cumulative. Boolean value that defines function form. If this argument is True, the BinomDist function returns integral function of distribution: that is, probability that the number of successful trials is not smaller than value of the Successes argument; if this argument is False, the distribution function is returned: that is, probability that the number of successful trials exactly equals to value of the Successes argument.

Description

The BinomDist method returns a separate value for binomial distribution.

Comments

The function is used to solve problems involving a fixed number of tests or trials, when the result of any trial can be success or failure only, trials are independent and the success probability is constant for the entire experiment period.

Example

Sub UserProc;
Var
    st: Statistics;
    d0: Double;
Begin
    st := New Statistics.Create;
    d0 := st.BinomDist(6, 10, 0.5, False);
    Debug.WriteLine("Binomial distribution: " + d0.ToString);
End Sub UserProc;

Executing this example displays the value of binomial distribution in the console window:

Module execution started

Binominal distribution: 0.20507812499583292

Module execution finished