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# NTTRUNCNORMPARAM

Returns parameters of the triangular distribution for the specified support, mean and standard deviation.

## Syntax

NTTRUNCNORMPARAM(

• Min,
• Max,
• Mean,
• Stdev

)

#### Parameters

• Min is a lower limit of a support of the distribution $a$.
• Max is a upper limit of a support of the distribution $b$.
• Mean is the arithmetic mean of the distribution.
• Stdev is the standard deviation of the distribution (Positive value).

## Remarks

• Restrictions of arguments:

$a

## Example

• The example may be easier to understand if you copy it to a blank worksheet

How to copy an example

1. Create a blank workbook or worksheet.
2. Select the example in the Help topic.

Note  Do not select the row or column headers.

Selecting an example from Help

3. Press CTRL+C.
4. In the worksheet, select cell A1, and press CTRL+V.
5. To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Tools menu, point to Formula Auditing, and then click Formula Auditing Mode.

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A B
Data Description
1 Value of parameter Min
4 Value of parameter Max
2.2 Arithmetic mean of the distribution
2 Standard deviation of the distribution
Formula Description (Result)
=NTTRUNCNORMPARAM(A2,A3,A4,A5) Parameter of the distribution : Mu, Sigma for the terms above

Note The formula in the example must be entered as an array formula. After copying the example to a blank worksheet, select the range A7:A8 starting with the formula cell. Press F2, and then press CTRL+SHIFT+ENTER.