Dsy Network www | forum | my | didattica | howto | wiki | el goog | stats | blog | dona | rappresentanti
Homepage
 Register   Calendar   Members  Faq   Search  Logout 
.dsy:it. : Powered by vBulletin version 2.3.1 .dsy:it. > Didattica > Corsi A - F > Calcolo delle probabilità e statistica matematica > Appello di Gennaio 2010 - Zanaboni
Pages (12): « First ... « 2 3 4 5 [6] 7 8 9 10 » ... Last »   Last Thread   Next Thread
Author
Thread    Expand all | Contract all    Post New Thread    Post A Reply
Collapse
mapenzi81
dsy developer

User info:
Registered: Feb 2005
Posts: 233 (0.03 al dì)
Location: Milano
Corso: Informatica
Anno: 3.....456789....
Time Online: 6 Days, 1:18:40 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

dal punto 2.7 il viaggio ridotto si ha con
1-P(G>a) e nel caso dell'esercizio 5 a=5

1-P(G>a) = 1- (1-p)^a+1 ....

__________________
Sto cercando disperatamente di capire perché i piloti kamikaze si mettessero i caschi in testa.

Dave Edison

24-01-2010 11:17
Click Here to See the Profile for mapenzi81 Click here to Send mapenzi81 a Private Message Find more posts by mapenzi81 Add mapenzi81 to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
Blackangel
.simpatizzante.

User info:
Registered: Oct 2005
Posts: 15 (0.00 al dì)
Location:
Corso:
Anno:
Time Online: 14:57:02: [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

perchè 5? da dove lo hai dedotto ?

24-01-2010 11:27
Click Here to See the Profile for Blackangel Click here to Send Blackangel a Private Message Find more posts by Blackangel Add Blackangel to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
frankKkK
.illuminato.

User info:
Registered: Oct 2008
Posts: 150 (0.03 al dì)
Location:
Corso: Informatica F94
Anno:
Time Online: 18:29:49 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

a=5 era nel testo...

24-01-2010 12:20
Click Here to See the Profile for frankKkK Click here to Send frankKkK a Private Message Find more posts by frankKkK Add frankKkK to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
Blackangel
.simpatizzante.

User info:
Registered: Oct 2005
Posts: 15 (0.00 al dì)
Location:
Corso:
Anno:
Time Online: 14:57:02: [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

scusami.... è vero si vede che ho ancora qualche linea di febbre!!

Grazie

24-01-2010 12:25
Click Here to See the Profile for Blackangel Click here to Send Blackangel a Private Message Find more posts by Blackangel Add Blackangel to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
bimbamel
.arcimaestro.

User info:
Registered: Oct 2003
Posts: 384 (0.05 al dì)
Location: Milano
Corso: informatica per le tlc
Anno: Primo fuori corso
Time Online: 13 Days, 5:43:39 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

Ciao

il risultato dell'esercizio 4.5 [ secondo i miei calcoli ] e' n>=272.

5.3 0,5386 P(|Xn-media|/rad(Var(Xn)<0,05/rad(Var(Xn))) risolvendo viene 0,874 , il risultato che ho trovato io è sbagliato


A me viene 0.1192... facendo il calcolo esattamente come hai descritto tu...

__________________
Trova il tempo di essere amico:
è la strada della felicità.
~ Madre Teresa di Calcutta

Last edited by bimbamel on 24-01-2010 at 14:53

24-01-2010 14:31
Click Here to See the Profile for bimbamel Click Here to See the Blog of bimbamel Click here to Send bimbamel a Private Message Find more posts by bimbamel Add bimbamel to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
Teju
:L'anti - anti-global!!:

User info:
Registered: Dec 2001
Posts: 1394 (0.16 al dì)
Location: Cassina Beach
Corso: Info
Anno: 3° ...circa...
Time Online: 5 Days, 8:26:35 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

Usando Tchebicheff nella IV.4 a me verrebbe P>=0,9... E' l'unico punto che ad ora non ho ancora capito il perchè di tanti risultati diversi...

EDIT: rimangio quanto detto... 0,05^2 = 0,0025 e non 0,025 come avevo calcolato... dunque con Tchebicheff fa 0...

Resto cmq che non ho idea di perchè sia sbagliato questo ragionamento...

__________________
Teju.it - Una vita da raccontare

Last edited by Teju on 24-01-2010 at 16:19

24-01-2010 16:14
Click Here to See the Profile for Teju Click Here to See the Blog of Teju Click here to Send Teju a Private Message Visit Teju's homepage! Find more posts by Teju Add Teju to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
epoc
.illuminato.

User info:
Registered: Sep 2006
Posts: 150 (0.02 al dì)
Location: Merlino
Corso: Informatica
Anno: Laureato
Time Online: 12:04:36 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

Come si svolgeva l'esercizio III?

__________________
Iannantuoni.com | CoseFatteInCasa.it

24-01-2010 22:40
Click Here to See the Profile for epoc Click here to Send epoc a Private Message Visit epoc's homepage! Find more posts by epoc Add epoc to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
chem
.simpatizzante.

User info:
Registered: Dec 2007
Posts: 19 (0.00 al dì)
Location: Gerenzano (VA)
Corso: Informatica
Anno: I Magistrale
Time Online: 6:47:53 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

f(p) = p(1-p) è una parabola, ed ha il suo massimo in p=1/2. Questo massimo vale f(1/2)=1/4, e ciò significa che per qualunque p tu possa scegliere non avrai mai p(1-p) maggiore di 1/4.

25-01-2010 17:05
Click Here to See the Profile for chem Click here to Send chem a Private Message Visit chem's homepage! Find more posts by chem Add chem to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
garfa84
.precettore.

User info:
Registered: Jan 2006
Posts: 92 (0.01 al dì)
Location:
Corso:
Anno:
Time Online: 3 Days, 3:04:58 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

qualcuno può postare lo svolgimento dell'esercizio 3....non ho ben chiaro la normalizzazione come suggerito da [mapenzi81 ]....

25-01-2010 22:56
Click Here to See the Profile for garfa84 Click here to Send garfa84 a Private Message Find more posts by garfa84 Add garfa84 to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
R1cky`
dsy developer

User info:
Registered: Oct 2007
Posts: 218 (0.03 al dì)
Location:
Corso: Informatica Magistrale
Anno: Secondo
Time Online: 1 Day, 13:11:53 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

Mi aggiungo anche io! Qualcuno potrebbe gentilmente spiegare l'esercizio 3?? :)

Comunque per quanto riguarda l'esercizio 2.5 io ho scritto (prendendo spunto da pag 168 dell'eserciziario) che:

P(G>X) = (1-p)^x

Last edited by R1cky` on 26-01-2010 at 09:59

26-01-2010 09:54
Click Here to See the Profile for R1cky` Click here to Send R1cky` a Private Message Find more posts by R1cky` Add R1cky` to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
middu
.arcimaestro.

User info:
Registered: Oct 2002
Posts: 466 (0.06 al dì)
Location:
Corso:
Anno:
Time Online: 4 Days, 16:14:21 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

P(G> x) è 1- P(G<=X)

26-01-2010 10:03
Click Here to See the Profile for middu Click here to Send middu a Private Message Find more posts by middu Add middu to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
R1cky`
dsy developer

User info:
Registered: Oct 2007
Posts: 218 (0.03 al dì)
Location:
Corso: Informatica Magistrale
Anno: Secondo
Time Online: 1 Day, 13:11:53 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

Originally posted by middu
P(G> x) è 1- P(G<=X)


Guarda a pagina 168 dell'eserciziario ;)
Tra l'altro nel testo dell'esercizio si suggeriva di utilizzare il risultato del punto 1.4, ed alla fine è uguale :)

26-01-2010 10:04
Click Here to See the Profile for R1cky` Click here to Send R1cky` a Private Message Find more posts by R1cky` Add R1cky` to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
middu
.arcimaestro.

User info:
Registered: Oct 2002
Posts: 466 (0.06 al dì)
Location:
Corso:
Anno:
Time Online: 4 Days, 16:14:21 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

IN EFFETTI HAI X INSUCCESSI PRIMA DI OTTENERLO DOPO LA PROVA X

26-01-2010 10:09
Click Here to See the Profile for middu Click here to Send middu a Private Message Find more posts by middu Add middu to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
middu
.arcimaestro.

User info:
Registered: Oct 2002
Posts: 466 (0.06 al dì)
Location:
Corso:
Anno:
Time Online: 4 Days, 16:14:21 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

PERCHE è COME AVERE X INSUCCESSI NELLE X PROVE

26-01-2010 10:11
Click Here to See the Profile for middu Click here to Send middu a Private Message Find more posts by middu Add middu to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
Collapse
R1cky`
dsy developer

User info:
Registered: Oct 2007
Posts: 218 (0.03 al dì)
Location:
Corso: Informatica Magistrale
Anno: Secondo
Time Online: 1 Day, 13:11:53 [...]
Status: Offline

Post actions:

Edit | Report | IP: Logged

Originally posted by mapenzi81

P(|Xn*| < 1) => 2F(1)-1 => 0,8413 * 2 -1 = 0,6826


Potresti gentilmente spiegarmi perchè P(|Xn*| < 1) => 2F(1)-1 ??

26-01-2010 10:35
Click Here to See the Profile for R1cky` Click here to Send R1cky` a Private Message Find more posts by R1cky` Add R1cky` to your buddy list Printer Friendly version Email this Article to a friend Reply w/Quote
All times are GMT. The time now is 19:59.    Post New Thread    Post A Reply
Pages (12): « First ... « 2 3 4 5 [6] 7 8 9 10 » ... Last »   Last Thread   Next Thread
Show Printable Version | Email this Page | Subscribe to this Thread | Add to Bookmarks

Forum Jump:
Rate This Thread:

Forum Rules:
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is OFF
vB code is ON
Smilies are ON
[IMG] code is ON
 

Powered by: vBulletin v2.3.1 - Copyright ©2000 - 2002, Jelsoft Enterprises Limited
Mantained by dsy crew (email) | Collabora con noi | Segnalaci un bug | Archive | Regolamento | Licenze | Thanks | Syndacate
Pagina generata in 0.086 seconds (78.28% PHP - 21.72% MySQL) con 26 query.