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<p>and <a href="page.php?w=even_and_odd_functions">even</a>.<br/>
* There is a <a href="page.php?w=bijection">bijection</a> between <a href="page.php?w=probability_distribution">probability distribution</a>s and characteristic functions on , . That is, for any two random variables , , with values in , both have the same probability distribution if and only if .<br/>
* If a random variable  has <a href="page.php?w=Moment_%28mathematics%29">moments</a> up to -th order, then the characteristic function  is  times continuously differentiable on the</p><p>
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