Răspuns :
[tex] m_{ponderata} = \frac{2*4+8*2+4*4}{4+2+4} = \frac{8+16+16}{10} = \frac{40}{10} =4[/tex]
mp = ( 2 x 4 + 8 x 2 + 4 x 4 ) / 4 + 2 + 4
mp = ( 8 + 16 + 16 ) / 10
mp = 40 / 10
mp = 4
mp = ( 8 + 16 + 16 ) / 10
mp = 40 / 10
mp = 4