Probability mass function: Difference between revisions

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Formal definition: Adding a wikilink
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<math display="block">\sum_x p_X(x) = 1 </math> and <math display="block"> p_X(x)\geq 0.</math>
 
Thinking of probability as mass helps to avoid mistakes since the physical mass is [[Conservation of mass|conserved]] as is the total probability for all hypothetical outcomes <math>x</math>.
 
==Measure theoretic formulation==