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E  "l'issue est un nombre pair "  =  0.32 + 0.23 =  0.55

F  "l'issue est un nombre  ≥ 3 = 0.19 + 0.23 = 0.42

P (E) = 0.3

P ( non E ) =  1 - 0.3 = 0 .7

P(E) = 1/3

P  ( Non E ) =  1 - 1/3 = 3/3 - 1/3 = 2/3

P (E) = 0.85

P (non E ) = 1 - 0.85 = 0.15

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