# Manuals/calci/BETAINV

BETAINV (Probability,Alpha,Beta,LowerBound,UpperBound,Accuracy,DivisionsAndDepthArray)

• is the probability value associated with the beta distribution.
• & are the values of the shape parameter.
• & the lower and upper limit to the interval of .
• gives accurate value of the solution.
• is the value of the division.
• BETAINV(), returns the inverse of the Cumulative Distribution Function for a specified beta distribution.

## Description

• This function gives the inverse value of Cumulative Beta Probability Distribution.
• It is called Inverted Beta Function or Beta Prime.
• In , is the probability value associated with Beta Distribution, and are the values of two positive shape parameters and and are the lower and upper limit.
• Normally the limit values are optional, i.e. when we are giving the values of & then the result value is from and .
• When we are omitting the values and , by default it will consider and , so the result value is from and .
• If , then .
• use the iterating method to find the value of .suppose the iteration has not converged after 100 searches, then the function gives the error result.
• This function will give the error result when
1.Any one of the arguments are non-numeric
2.Alpha or Beta 0
3.Number<LowerBound ,Number>UpperBound or LowerBound = UpperBound
4.we are not mentioning the limit values  for LowerBound & UpperBound ,
by default it will consider the Standard Cumulative Beta Distribution, LowerBound = 0 and UpperBound = 1


## ZOS

• The syntax is to calculate of this function in ZOS is .
• is the probability value associated with the beta distribution.
• and are the values of the shape parameter.
• For e.g.,BETAINV(0.30987,10,18,12,16)

## Examples

1. BETAINV(0.2060381025,5,9,2,6) = 3
2. BETAINV(0.359492343,8,10) = 1.75
3. BETAINV(0.685470581,5,8,2,6) = 3.75
4. BETAINV(0.75267,1,7,7,9) = 7.25
5. BETAINV(0.5689,-2,4,3,5) = #N/A (ALPHA GREATER THAN (OR) NOT EQUAL TO 0)

## Related Videos

Beta Inverse Distribution