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<!DOCTYPE html>
<html>
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<title>TDIST Function</title>
<meta charset="utf-8" />
<meta name="description" content="" />
<link type="text/css" rel="stylesheet" href="../editor.css" />
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<link type = "text/css" rel = "stylesheet" href = "../../images/sprite.css" />
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<script type="text/javascript" src="../callback.js"></script>
<script type="text/javascript" src="../search/js/page-search.js"></script>
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</head>
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<div class="mainpart">
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<input id="search" class="searchBar" placeholder="Search" type="text" onkeypress="doSearch(event)">
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</div>
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<h1>TDIST Function</h1>
<p>The <b>TDIST</b> function is one of the statistical functions. Returns the Percentage Points (probability) for the Student t-distribution where a numeric value (<b><em>x</em></b>) is a calculated value of t for which the Percentage Points are to be computed. The t-distribution is used in the hypothesis testing of small sample data sets. Use this function in place of a table of critical values for the t-distribution.</p>
<p>The <b>TDIST</b> function syntax is:</p>
<p style="text-indent: 150px;"><b><em>TDIST(x, deg-freedom, tails)</em></b></p>
<p><em>where</em></p>
<p style="text-indent: 50px;"><b><em>x</em></b> is the value at which the function should be calculated. A numeric value greater than 0.</p>
<p style="text-indent: 50px;"><b><em>deg-freedom</em></b> is the number of degrees of freedom, an integer greater than or equal to 1.</p>
<p style="text-indent: 50px;"><b><em>tails</em></b> is a numeric value that specifies the number of distribution tails to return. If it is set to 1, the function returns the one-tailed distribution. If it is set to 2, the function returns the two-tailed distribution.</p>
<p>The values can be entered manually or included into the cells you make reference to.</p>
<p>To apply the <b>TDIST</b> function,</p>
<ol>
<li>select the cell where you wish to display the result,</li>
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<li>click the <b>Insert function</b> <div class = "icon icon-insertfunction"></div> icon situated at the top toolbar,
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<br />or right-click within a selected cell and select the <b>Insert Function</b> option from the menu,
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<br />or click the <div class = "icon icon-function"></div> icon situated at the formula bar,
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</li>
<li>select the <b>Statistical</b> function group from the list,</li>
<li>click the <b>TDIST</b> function,</li>
<li>enter the required arguments separating them by commas,</li>
<li>press the <b>Enter</b> button.</li>
</ol>
<p>The result will be displayed in the selected cell.</p>
<p style="text-indent: 150px;"><img alt="TDIST Function" src="../images/tdist.png" /></p>
</div>
</body>
</html>
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