allora
<BR>p=1-(p(7,3)/p(10,3))=1-((7*6*5/3*2)/(10*9*8/3*2))=1-(7*5/10*3*4)=
<BR>1-(7/24)=17/24=0.70833333333... <IMG SRC="images/forum/icons/icon_wink.gif"> <IMG SRC="images/forum/icons/icon_razz.gif"> <IMG SRC="images/forum/icons/icon21.gif">
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<BR>ciao!!! <IMG SRC="images/forum/icons/icon21.gif">
problema
Moderatore: tutor
- psion_metacreativo
- Messaggi: 645
- Iscritto il: 01 gen 1970, 01:00
allora, in generale c(n,k)= n*(n-1)*(n-2).....(n-k+1)/k!
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<BR>martos <IMG SRC="images/forum/icons/icon21.gif"> <IMG SRC="images/forum/icons/icon21.gif">
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<BR>martos <IMG SRC="images/forum/icons/icon21.gif"> <IMG SRC="images/forum/icons/icon21.gif">
mmmmmmmmmmaaaaaaaaaaaaarrrrrrrrrrrrrrrrrrrrrrrttttttttttttttttttttttttoooooooooooooooo..
- psion_metacreativo
- Messaggi: 645
- Iscritto il: 01 gen 1970, 01:00