Question

Media aritmetica a numerelor a= 2,5 si b = 1,28 este:

Answer 1

$\displaystyle a=2,5 \\ b=1,28 \\ m_a= \frac{a+b}{2} = \frac{2,5+1,28}{2} = \frac{3,78}{2} =1,89$

Answer 2

2,5+1,28/2=3,78/2=1,89