## Excel EXPONDIST Function

### Description

The Excel EXPONDIST function returns the exponential distribution based on the given x value and the parameter of the distribution.

Note: This function has been replaced with EXPON.DIST function that may provide improved accuracy after Excel 2010 version. This function is still can be available but considering it may be not available in the future, you should better study to use the new function from now.

### Syntax and arguments

Formula syntax

EXPONDIST(array1,array2,cumulative)

Arguments

 X: Required, the value of the function. It must be ≥ 0. Lambda: Required, the parameter of the distribution. It must be ≥ 0. Cumulative: Required, a logical argument that specifies the type of the exponential function to be returned.TRUE: returns the cumulative distribution function;FALSE: returns the probability density function.

### Remarks

1. The function returns #VALUE! error value if either argument x or lambda is a non-numeric value.

2. The function returns #NUM! error value if either argument x < 0 or lambda ≤ 0.

3. The equation for the probability density function is:

4. The equation for the cumulative distribution function is:

Excel 2007.

### Usage and Examples

Basic usage

For instance, the argument x is 2 and the argument lambda is 5, to get the relative cumulative distribution function and probability density function, please use the formula as these:

=EXPONDIST(2,5,TRUE)  //Return cumulative distribution function

=EXPONDIST(2,5,FALSE)  //Return probability density function

Press Enter key.

#### Other Functions:

• Excel COVARIANCE.P Function
The Excel COVARIANCE.P function returns the population variance of two data sets which is used to determine the relationship between two data sets.

• Excel EXPON.DIST Function
EXPON.DIST function used in Excel 2010, returns the exponential distribution based on the given x value and the parameter of the distribution.

• Excel NORM.S.INV Function
The NORM.S.INV calculates and returns the inverse of the standard normal cumulative distribution that has an arithmetic mean of 0 and standard deviation of 1 with a given probability.

### The Best Office Productivity Tools

#### Kutools for Excel - Helps You To Stand Out From Crowd

 🤖 Kutools AI Aide: Revolutionize data analysis based on: Intelligent Execution   |  Generate Code  |  Create Custom Formulas  |  Analyze Data and Generate Charts  |  Invoke Kutools Functions… Popular Features: Find, Highlight or Identify Duplicates  |  Delete Blank Rows  |  Combine Columns or Cells without Losing Data  |  Round without Formula ... Super VLookup: Multiple Criteria  |  Multiple Value  |  Across Multi-Sheets  |  Fuzzy Lookup... Adv. Drop-down List: Easy Drop Down List  |  Dependent Drop Down List  |  Multi-select Drop Down List... Column Manager: Add a Specific Number of Columns  |  Move Columns  |  Toggle Visibility Status of Hidden Columns  |  Compare Columns to Select Same & Different Cells ... Featured Features: Grid Focus  |  Design View  |  Big Formula Bar  |  Workbook & Sheet Manager | Resource Library (Auto Text)  |  Date Picker  |  Combine Worksheets  |  Encrypt/Decrypt Cells  |  Send Emails by List  |  Super Filter  |  Special Filter (filter bold/italic/strikethrough...) ... Top 15 Toolsets:  12 Text Tools (Add Text, Remove Characters ...)  |  50+ Chart Types (Gantt Chart ...)  |  40+ Practical Formulas (Calculate age based on birthday ...)  |  19 Insertion Tools (Insert QR Code, Insert Picture from Path ...)  |  12 Conversion Tools (Numbers to Words, Currency Conversion ...)  |  7 Merge & Split Tools (Advanced Combine Rows, Split Excel Cells ...)  |  ... and more

Kutools for Excel Boasts Over 300 Features, Ensuring That What You Need is Just A Click Away...

#### Office Tab - Enable Tabbed Reading and Editing in Microsoft Office (include Excel)

• One second to switch between dozens of open documents!
• Reduce hundreds of mouse clicks for you every day, say goodbye to mouse hand.
• Increases your productivity by 50% when viewing and editing multiple documents.
• Brings Efficient Tabs to Office (include Excel), Just Like Chrome, Edge and Firefox.