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Media ponderata a numerelor 10,9,9,7,6 si 7 in teza

Răspuns :

Media se face asa:

Med. ponderata*3+teza
M. F= _________________
4

Med. ponderata:

2*9+10+7+6
__________ = 41/5=8.2
2+1+1+1

8.2*3+7
M.F= _______ = 31.6/4=7.9
4

Am folosit: M.F- media finala
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