Răspuns :
18 bile
6 albe
18-6= 12 bile negre
p= nf/np
cazuri favorabile=> 12 (bile negre)
cazuri posibile=> 18 (bile in total)
p= 12/18= 0,6666 = 66%
18 bile
6 albe
18-6= 12 bile negre
p= nf/np
cazuri favorabile=> 12 (bile negre)
cazuri posibile=> 18 (bile in total)
p= 12/18= 0,6666 = 66%