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NTPOISSONDIST

Returns the Poisson distribution for the specified parameters.

Syntax​

NTPOISSONDIST(
    k,
    Mean,
    Cumulative
)

Parameters​

  • k is the value for which you want the distribution k(≥0)k(\geq 0) (Integer).
  • Mean is a parameter of the distribution ν\nu.
  • Cumulative is a logical value that determines the form of the function. If cumulative is TRUE, NTPOISSONDIST returns the cumulative distribution function; if FALSE, it returns the probability mass function.

Remarks​

  • This function is same as Excel function "POISSON".

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

    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.

AB
1DataDescription
23Value for which you want the distribution
35Value of parameter Mean
4FormulaDescription (Result)
5=NTPOISSONDIST(A2,A3,TRUE)Cumulative distribution function for the terms above
6=NTPOISSONDIST(A2,A3,FALSE)Probability density function for the terms above

See also​