BETADIST

Returns the cumulative beta probability density function. The beta distribution is commonly used to study variation in the percentage of something across samples, such as the fraction of the day people spend watching television.

Syntax

BETADIST(x,alpha,beta,A,B)

X     is the value between A and B at which to evaluate the function.

Alpha     is a parameter of the distribution.

Beta     is a parameter of the distribution.

A     is an optional lower bound to the interval of x.

B     is an optional upper bound to the interval of x.

Remarks

  • If any argument is nonnumeric, BETADIST returns the #VALUE! error value.
  • If alpha ≤ 0 or beta ≤ 0, BETADIST returns the #NUM! error value.
  • If x < A, x > B, or A = B, BETADIST returns the #NUM! error value.
  • If you omit values for A and B, BETADIST uses the standard cumulative beta distribution, so that A = 0 and B = 1.

Example

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A B
Data Description
2 Value at which to evaluate the function
8 Parameter of the distribution
10 Parameter of the distribution
1 Lower bound
3 Upper bound
Formula Description (Result)
=BETADIST(A2,A3,A4,A5,A6) Cumulative beta probability density function, for the above parameters (0.685470581)
 
 
Applies to:
Excel 2003