# WEIBULL

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## Content



This function returns the two-parameter Weibull distribution, often used in reliability analysis.

## Syntax

WEIBULL(*x*,*alpha*,*beta*,*cumulative*)

## Arguments

This function has these arguments:

| **Argument** | **Description** |
| -------- | ----------- |
| *x* | Value at which to evaluate the distribution |
| *alpha* | Scale parameter of the distribution, represented by alpha |
| *beta* | Shape parameter of the distribution, represented by beta |
| *cumulative* | Logical value that determines the form of the function If cumulative is TRUE, then this function returns the cumulative distribution function; if FALSE, it returns the probability mass function. |

## Data Types

Accepts numeric data for all arguments except cumulative, which is logical (boolean). Returns numeric data.

## Examples

`WEIBULL(3,D4,D5,FALSE)`
`WEIBULL(50,10,20,TRUE)`

## Version Available

This function is available in product version 1.0 or later.

## See Also

[BINOMDIST](/spreadnet/docs/latest/online-formula/formulas-functionsall/formulas-functsAtoC/FunctionBINOMDIST) \| [Statistical Functions](/spreadnet/docs/latest/online-formula/formulas-overview/formulas-functs/formulas-functtypes/formulas-functsstats)