Urne 1

(J), (V), (V), (V), (V), (J), (V), (J), (J), (J), (N), (J), (J)

Dans une urne, nous avons 5 boules vertes (V), 7 boules jaunes (J), et 1 boule noire (N), indiscernables au toucher.

Quelle est la probabilité de tirer une boule verte (V)?

La probabilité (sous forme de fraction) =

Enter your reply:


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