Question

Calculati media aritmetica ponderata a numerelor 1\2 ,1\3 si 1\4 cu ponderile 2,3 si 4.

Answer 1

$\frac{ \frac{1}{2}*2 + \frac{1}{3}*3+ \frac{1}{4}*4 }{2+3+4} = \frac{1+1+1}{9} = \frac{3}{9} = \frac{1}{3}$ =0,(3)