Question

Ce medie va avea un elev care are notele 7.8.9.72 Dar 5.6.8.87
Plssssss​

Answer 1

a) (7+8+9,72):3= 8,24 ( daca se rotunjește atunci 8)

b) ( 5+6+8,87):3= 6,22 ( daca se rotunjește atunci 6)

Answer 2

$\frac{suma \: de \: numere}{numar \: de \:numere} = \frac{7 + 8 + 9 + 7 + 2}{5} = \frac{15 + 18}{5} = \frac{33}{5} = 33 \div 5 = 6.6$

Elevul v-a avea media 6,6=>7

$\frac{suma \: de \: numere}{numar \: de \: numere} = \frac{5 + 6 + 8 + 8 + 7}{5} = \frac{11 + 23}{5} = \frac{34}{5} = 34 \div 5 = 6.8$

Elevul v-a avea media 6,8=>7