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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 > Soluzione esame 9 giugno
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Torre
.amico.

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Si viene così anche a me...Io non ho proprio idea di come fare il 3.5 e il 4.7 e spiegare quei grafici...L'unica è sperare che quelli che han domani l'orale ci possano dare qualche dritta sui risultati...IN BOCCA AL LUPO A TUTTI!!!!

15-06-2010 18:35
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epoc
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Puoi scrivere i passaggi della stadardizzazione?

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15-06-2010 18:39
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alien
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P(|Hn|<= rad(n)/3) => = Φ(rad(n)/3) - Φ(-rad(n)/3)=
2Φ(rad(n)/3) -1 >=0.95 => Φ(rad(n)/3) >= 1.95/2= 0.975 vedere dalle tavole corrisponde 1.96 quindi rad(n)/3=1.96 e ricavi n = (3*1.96)^2
=34,57

15-06-2010 18:49
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epoc
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Sì.. anche se a me viene... 34,92...

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15-06-2010 18:56
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epoc
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In definitiva circa 35 prove sono necessarie per la stima... uhmmm quindi usando la normale si ha una precisione migliore.. quindi.. il 180 di chebychev è giusto..

però all'orale dobbiamo dire che se consideriamo il numero di veicoli tendente all'infinito.. si può usare la normale e avere una stima più precisa che è sul 35...

giusto?

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15-06-2010 18:59
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alien
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avrai tenuto qualche numero in piu dopo qualche virgola

15-06-2010 19:00
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Counter65
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notizie dagli orali di oggi? cosa ha chiesto?

16-06-2010 12:08
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alien
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nessuno?

16-06-2010 13:33
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Joy88
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Speriamo che siano tutti a festeggiare!!
:shock:

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16-06-2010 16:02
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alien
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mah.....secondo me sono tutti a studiare per il 7 luglio.......

16-06-2010 16:11
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Joy88
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Non scoraggiarmi in questo modo..!
Altrimenti x il 7 dovremo studiare anche noi!
o.O

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16-06-2010 16:14
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epoc
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24

Essendo stato uno degli ultimi mi ha chiesto argomenti diversi da quelli del compito... Pur partendo da lì come spunto.

Addirittura mi ha chiesto la varianza campionaria e altre cose che non avrei creduto... Insomma.. Prima di me ho assistito ad orali decisamente più semplici.. Ma comunque è andata!!! :D

In bocca al lupo a chi deve ancora farlo, io esco di scena, era l'ultimo esame.

( inchino e standing ovation del pubblico ) :cool:

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16-06-2010 16:17
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Joy88
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Beato te Epoc!!!!
Concluso in bellezza!!!!
:D

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"Amor, ch’a nullo amato amar perdona, mi prese del costui piacer sì forte che, come vedi, ancor non m’abbandona."

*Dante*

16-06-2010 16:20
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alien
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bella li,complimenti....speriamo bene per domani,anche perche finito sto esame dsy rimarra vuoto......èl'ultimo per tutti noi!

16-06-2010 16:22
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alien
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chiedeva dimostrazioni?quanti minuti a persona?

16-06-2010 16:24
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