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.dsy:it. : Powered by vBulletin version 2.3.1 .dsy:it. > Didattica > Corsi A - F > Calcolo delle probabilità e statistica matematica > [De Falco] Esercizi e temi d'esame Thread Rating: 1 votes, 1.00 average.
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alanf1981
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Beh X è una normale con E(x) = mu e var(x) = sigma^2

Siccome Ta=n*X ---> è una normale con E(Ta) = n*mu e var(Ta) = (n^2) * (sigma^2)

mentre Tb=sommatoria(Xi) ---> è una normale con E(Tb) = n*mu e var(Tb) = n * (sigma^2)


Scusa x i NON simboli matematici! ;)

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07-07-2005 14:49
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the_wiz
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Originally posted by alanf1981
Beh X è una normale con E(x) = mu e var(x) = sigma^2

Siccome Ta=n*X ---> è una normale con E(Ta) = n*mu e var(Ta) = (n^2) * (sigma^2)

mentre Tb=sommatoria(Xi) ---> è una normale con E(Tb) = n*mu e var(Tb) = n * (sigma^2)


Scusa x i NON simboli matematici! ;)


Ok grazie!
07-07-2005 14:51
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the_wiz
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intanto ho messo su il testo del tema di ieri...
nella sezione filez
07-07-2005 15:02
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xtreme82
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non riesci a farci questo enorme favore,di scannerizzarlo un po meglio...grazie mille....

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07-07-2005 15:10
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the_wiz
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Originally posted by xtreme82
non riesci a farci questo enorme favore,di scannerizzarlo un po meglio...grazie mille....


dovrebbe essere a posto ora
07-07-2005 15:52
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mrc
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ma non c'è stato nessuno che è sicuro e può dimostrare con passaggi gli ultimi 3 esercizi???
07-07-2005 15:59
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lallyblue
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no ma scusate... ma avete dato l'esame solo in 3?!? o c'è qcosa che mi sfugge?
http://www.dsi.unimi.it/avviso.php?...tudenti;id=3503

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07-07-2005 18:47
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tata1283
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Ma quelli sono i risultati di Apolloni non De Falco
07-07-2005 19:46
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cartagine
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Stato di calma apparente. Disperazione, o superbia ?

Magari se qualcuno transita oggi davanti al defalco-door e intravede qualcosa lo posta ?

Thank's a lot.

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[CPSM-De Falco] Finitaaaaa !!
08-07-2005 10:12
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mitnik
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calma apparente tendente a disperazione!!!

cosa e come state studiando per un eventuale orale?

mi dite per esempio come calcolare l'esercizio II.4?
08-07-2005 10:48
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alanf1981
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Io nel dubbio sto studiando...speriamo!
Secondo voi quanti eravamo? circa 50?

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08-07-2005 13:20
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laureandizzante

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Originally posted by mitnik
calma apparente tendente a disperazione!!!
cosa e come state studiando per un eventuale orale?

Questa domanda viene fuori ad ogni appello, e ogni volta non c'è una risposta. Io provo a studiare le parti di teoria coinvolte nel tema (ad esempio bisogna venirne fuori con il II.4, per forza !!), più qualcosa di "classico", tchebycheff, limite centrale, legge dei grandi numeri. Chi-sà ?

Originally posted by mitnik
mi dite per esempio come calcolare l'esercizio II.4?


Io ho provato a derivare ma ... le cose sono due, (1) ho sbagliato a derivare oppure (2) quello che ne esce non mi illumina affatto.

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[CPSM-De Falco] Finitaaaaa !!
08-07-2005 13:51
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cartagine
laureandizzante

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Il prof. verso la fine ha detto che non pubblicava i risultati prima di lunedi o ricordo male ?

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[CPSM-De Falco] Finitaaaaa !!
08-07-2005 13:56
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alanf1981
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Sì, ha detto che usciranno verso mezzogiorno di lunedi!

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Last edited by alanf1981 on 08-07-2005 at 15:54
08-07-2005 14:05
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laureandizzante

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Ok, allora, cuore in pace, chiudo porte e finestre, si studia.

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[CPSM-De Falco] Finitaaaaa !!
08-07-2005 14:08
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