<div class="raw-html-embed">	<p>The <b>POISSON</b> function is one of the <a href="../../docs/userguides/spreadsheet_editor/InsertFunction.aspx#statistical" onclick="onhyperlinkclick(this)">statistical functions</a>. It is used to return the Poisson distribution.</p>

	<h5 class="pt8">Syntax</h5>
	<p><b><em>POISSON(x, mean, cumulative)</em></b></p>
	<p>The <b>POISSON</b> function has the following arguments:</p>
	<table style="width: 40%">
		<tbody>
			<tr>
				<th style="background-color: #f4f4f4" width="150ch"><b>Argument</b></th>
				<th style="background-color: #f4f4f4"><b>Description</b></th>
			</tr>
			<tr>
				<td><b><em>x</em></b></td>
				<td>The number of events, a numeric value greater than 0.</td>
			</tr>
			<tr>
				<td><b><em>mean</em></b></td>
				<td>The expected numeric value greater than 0.</td>
			</tr>
			<tr>
				<td><b><em>cumulative</em></b></td>
				<td>The form of the function, a logical value: TRUE or FALSE. If <b><em>cumulative</em></b> is TRUE, the function will return the cumulative Poisson probability; if FALSE, it will return the Poisson probability mass function.</td>
			</tr>
		</tbody>
	</table>

	<h5 class="pt8">Notes</h5>
	<p><a href="../../docs/userguides/spreadsheet_editor/InsertFunction.aspx#howtoapplyfunctions_block" onclick="onhyperlinkclick(this)">How to apply</a> the <b>POISSON</b> function.</p>

	<h5 class="pt8">Examples</h5>
	<p>The figure below displays the result returned by the <b>POISSON</b> function.</p>
	<p><img alt="POISSON Function" src="https://static-helpcenter.teamlab.info/poisson_c75a5b3fbd.png"></p></div>

POISSON Function

Docs

Argument	Description
x	The number of events, a numeric value greater than 0.
*mean*	The expected numeric value greater than 0.
*cumulative*	The form of the function, a logical value: TRUE or FALSE. If *cumulative* is TRUE, the function will return the cumulative Poisson probability; if FALSE, it will return the Poisson probability mass function.

POISSON Function

Syntax

Notes

Examples

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