Bonsoir, si une âme généreuse veut bien m'éclairer, je lui en serai très reconnaissante ... :-) Every afternoon five o'clock Charles is having tea at his mother
Mathématiques
nihalym
Question
Bonsoir, si une âme généreuse veut bien m'éclairer, je lui en serai très reconnaissante ... :-)
Every afternoon five o'clock Charles is having tea at his mother's.
In order to start the conversation he keeps saying either "I think it's raining" ou " I think it isn't raining ".
He is mistaken once out of three when it is raining, and once out of two when it is not raining nine time out of ten.
this afternoon , just after Big Ben rang five , he said : " I think it's raining".
Calculate the probability it is actually raining.
Every afternoon five o'clock Charles is having tea at his mother's.
In order to start the conversation he keeps saying either "I think it's raining" ou " I think it isn't raining ".
He is mistaken once out of three when it is raining, and once out of two when it is not raining nine time out of ten.
this afternoon , just after Big Ben rang five , he said : " I think it's raining".
Calculate the probability it is actually raining.
1 Réponse
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1. Réponse mimi03jhcgg
Tous les après midi Charles prend le thé avc sa mere .dans l ordre pour commencer la conversation,il ne fait que dire où il pleut ou il ne pleut pas.il se trompe une fois sur trois quand il pleut et 1fois sur 2quand il ne pleut pas :9fois sur10.
Cette après midi juste apres qu il a sonné 5h il a dit:"je pense qu il pleut"
Calcule la probabilité qu il pleuve mtn .
J'ai réussi à traduire j'essaie de chercher la réponse