Definitia probabilitatii:
[tex]probabilitatea=\frac{numar cazuri favorabile}{numar cazuri posibile} \\[/tex]
Aplicand aceasta formula in problema noastra si notand cu "p" probabilitatea, avem:
[tex]p=\frac{7}{7+14} \\p=\frac{7}{21}=\frac{1}{3}[/tex]
Raspuns: [tex]\frac{1}{3}[/tex]
