Question

VA ROG AJUTATI - MA CAT MAI REPEDE VA ROOOOOG!!!!!!!!!!!

Calculati media aritmetica a numerelor : 8 si 18 , 11 si 31 , 203 si 507 , 457 si 393.

MERSI!

Answer 1

Răspuns:

$\frac{8+18}{2}=\frac{26}{2}=13\\\\\frac{11+31}{2} =\frac{42}{2} =21\\\\\frac{203+507}{2} =\frac{710}{2} =355\\\\\frac{457+393}{2} =\frac{840}{2} =420$

Explicație pas cu pas:

Formula este

ma=x+y/2

ma=x1+x2+...+xn/xn