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La probabilité d'un évènement A ne se réalise pas est 3/7 donc:

- P(A) = 3/7 - P(A) = 4/7
- P(A) = 4/10
- P(A) = 7/4 ​

User MEvans
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1 Answer

6 votes

Answer:

P(A) = 4/7.

Explanation:

Probability it does not occur = 3/7 so probability it does is 1 - 3/7.

P(A) = 1 - 3/7 = 4/7.

User Bryce S
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