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→Probabilistic-causal analysis
*<math>E_3</math> = patients without bone degeneration of the temporomandibular joint.
*<math>E_3</math> = patients without bone degeneration of the temporomandibular joint.
We will use the probability conditioned <math>P(A \mid B)</math> that is the probability that the <math>A</math> event occur only after the event <math>B</math> has already occurred.
We will use the conditional probability <math>P(A \mid B)</math>, that is the probability that the <math>A</math> event occurs only after the event <math>B</math> has already occurred.
With these premises the causal relevance of the sample <math>n</math> of patients is:
With these premises the causal relevance of the sample <math>n</math> of patients is:
<math>rc=P(E_2 \mid E_1)- P(E_2 \mid E_3)</math>
<math>rc=P(E_2 \mid E_1)- P(E_2 \mid E_3)</math>
where <math>P(E_2 \mid E_1)</math> indicates the probability that some people (among <math>n</math> taken into consideration) suffer from Orofacial Pain caused by bone degeneration of the Temporomandibular Joint, while <math>P(E_2 \mid E_3)</math> indicates the probability that other people (always among <math>n</math> taken into consideration) suffer from Orofacial Pain conditioned by something other than bone degeneration of the Temporomandibular Joint.
where <math>P(E_2 \mid E_1)</math> indicates the probability that some people (among <math>n</math> taken into consideration) suffer from Orofacial Pain caused by bone degeneration of the Temporomandibular Joint, while <math>P(E_2 \mid E_3)</math> indicates the probability that other people (always among <math>n</math> taken into consideration) suffer from Orofacial Pain conditioned by something other than bone degeneration of the Temporomandibular Joint.
Since all probability <math>P(A \mid B)</math> is a value between <math>0 </math> and <math>1 </math>, the parameter <math>(cr)</math> will be a number that is between <math>-1 </math> and <math>1 </math>.
Since all probability <math>P(A \mid B)</math> is a value between <math>0 </math> and <math>1 </math>, the parameter <math>(cr)</math> will be a number that is between <math>-1 </math> and <math>1 </math>.