Question

calculati media ponderata a numerelor 3,5,8 si 10 cu ponderile 10,8,5 si respectiv 3 si comparati-o cu media lor aritmetica

Answer 1

3x10+5x8+8x5+10x3=
=30+40+40+30
=60+80
=140
10+8+5+3=
=18+5+3
=23+3
=26

mp=140/26
mp=5,384

ma=140/4=20

mp

Sper ca geam ajutat ! :)