NTPOISSONSTDEV

Returns standard deviation of a specified Poisson distribution.

Syntax

NTPOISSONSTDEV(
    Mean
)

Parameters

• Mean is the arithmetic mean of the distribution (Positive value).

Remarks

The standard deviation of the distribution is given as:

$$\sqrt{\textit{Mean}}$$

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.

	A	B
1	Data	Description
2	8	Arithmetic mean of the distribution
3	Formula	Description (Result)
4	=NTPOISSONSTDEV(A2)	Standard deviation of the distribuion for the terms above

See also

• NTRANDPOISSON
• NTPOISSONDIST
• NTPOISSONKURT
• NTPOISSONMEAN
• NTPOISSONMOM
• NTPOISSONSKEW
• Poisson distribution