Syntax :

=BETA.DIST ( x, alpha, beta, cumulative, [A], [B] )

Parameters :

x – The value at which the function should be computed (must be between [A] and [B]).

alpha – A distribution parameter (must be greater than 0).

beta – A distribution parameter (must be greater than 0).

Cumulative – A logical input that determines the type of distribution to be utilised. This might be either:

TRUE  = Cumulative Beta Distribution Function.

 FALSE = Beta probability  Density Function.

[A] – An optional parameter that specifies the lower bound of the x interval.
(If omitted, [A] is set to 0 by default.)

[B] – An optional parameter that specifies the upper bound of the x interval.(If omitted, [B] is set to the default value of 1).

The Standard Beta Distribution is obtained by setting the parameters [A] and [B] to 0 and 1, respectively.