Question

Calculați media anuală a lui Mihai,știind că are următoarele medii:6,50;7;8;9;10;9,50;6,50;9;7;9;9;10

Answer 1

6,5+7+8+9+10+9.5+6.5+9+7+9+9+10=97.5:12=8,125

Answer 2

{6+50+7+8+9+10+9+50+6+50+9+7+9+9+10}÷15
{56+7+8+9+10+9+50+6+50+9+7+9+9+10}÷15
{63+8+9+10+9+50+6+50+9+7+9+9+10}÷15
{71+9+10+9+50+6+50+9+7+9+9+10}÷15
{80+10+9+50+6+50+9+7+9+9+10}÷15
{90+9+50+6+50+9+7+9+9+10}÷15
{99+50+6+50+9+7+9+9+10}÷15
{149+6+50+9+7+9+9+10}÷15
{155+50+9+7+9+9+10}÷15
{205+9+7+9+9+10}÷15
{214+7+9+9+10}÷15
{221+9+9+10}÷15
{230+9+10}÷15
{239+10}÷15
249÷15
16,6