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Maths: P17/18 QCM5


Go to solution Solved by Chat_du_Cheshire,

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Posted

Holaaa les mathématiciens, 

 

Je bloque bêtement sur 2 items du QCM5 alors que je pense que la logique est super simple mais bon je bloque (la fatigue surement😴) et il n'y pas la correction détaillée de ce QCM (tristesse😢)

 

Lien du QCM: https://www.zupimages.net/viewer.php?id=19/01/jbmt.jpg

Je bloque sur les items A et D, qui sont tout deux vrais 

 

Merci d'avanceee:licornedab:

  • Solution
Posted (edited)

Heyyy

  • item A : (0*43 + 41*1 + 2*11 + 3*3 + 4*1 + 5*1)/100 = 0,81
  • item D : on cherche P(X >= 1) soit 1-P(X=0) = 1 - 0,43 = 0,57 (et c'est bien une loi de Bernoulli car il n'y a que 2 issues, au moins un accident /jour ou 0 accident) 🙂
Edited by Chat_du_Cheshire

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