Table of Contents
This guide provides a practical overview of BETA. INV Function, including its main features, benefits, limitations, and important considerations.

Description: The function returns the inverse of the cumulative distribution function for a given beta distribution. Support function from Excel 2010 version.
Syntax: BETA. INV (probability, alpha, beta, [A], [B])
Inside:
- probability: Probability associated with beta distribution, is a required parameter.
- alpha: The parameter of the distribution, is a required parameter.
- beta: The parameter of distribution, is a required parameter.
- A: The lower bound of about x, is an optional parameter.
- B: The upper bound of the x interval , is an optional parameter.
Attention:
- If any parameter is not a number -> the function returns the #VALUE! Error value
- If alpha ? 0 or beta ? 0 -> the function returns the #NUM! Error value
- If probability ? 0 or probability> 1 -> the function returns the #NUM! Error value
- If parameters A and B are omitted, the function uses the cumulative distribution to normalize ie A = 0 and B = 1.
For example:
Calculate the inverse value of the cumulative beta distribution function with the figures in the table below:

- In the cell to calculate enter the formula : = BETA. INV (C6, C7, C8, C9, C10)

- Press Enter -> the inverse value of the beta cumulative distribution function is:

- Where the probability associated with a beta distribution is greater than 1 or less than 0 -> the function returns the #NUM! Error value

- Where the parameter or parameter is less than 0 -> the function returns the #NUM! Error value

Above are instructions and specific examples when using BETA. INV function in Excel.
FAQ
What does the BETA. INV Function function do in Excel?
The BETA. INV Function function performs the calculation described in this guide. Use the correct arguments and compatible data types for reliable results.
How do I enter the BETA. INV Function function correctly?
Start with an equals sign, enter BETA. INV Function, add the required arguments inside parentheses, and confirm that cell references and separators are correct.
Why does the BETA. INV Function function return an error?
Common causes include missing arguments, invalid data types, incorrect cell references, unsupported values, or regional separator settings.
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