Odpowiedź:
P( B) = [tex]\frac{2}{6} *\frac{1}{2} + \frac{4}{6} *\frac{7}{10} = \frac{1}{6} + \frac{28}{60} = \frac{38}{60}[/tex] = [tex]\frac{19}{30}[/tex]
P( C ) = [tex]\frac{1}{3} * \frac{1}{2} + \frac{2}{3} * \frac{3}{10} = \frac{1}{6} + \frac{1}{5} =[/tex] [tex]\frac{11}{30}[/tex]
P( B ) > P ( C )
==============
Szczegółowe wyjaśnienie: