Question

Calculati media aritmetica a numerelor

b) x= 2,8(3) si y=1,1(6)

Answer 1

b) x=2,8(3)=283-28/90=255/90
    y=1,1(6)=116-11/90=105/90
   Ma=(255/90+105/90):2
   Ma=(360/90):2
   Ma=4:2
   Ma=2

Answer 2

$\displaystyle x=2,8(3) \Rightarrow x= \frac{283-28}{90} \Rightarrow x= \frac{255}{90} ^{(15}\Rightarrow x= \frac{17}{6} \\ \\ y=1,1(6) \Rightarrow y= \frac{116-11}{90} \Rightarrow y= \frac{105}{90} ^{(15}\Rightarrow y= \frac{7}{6} \\ \\ M_a= \frac{ \frac{17}{6}+ \frac{7}{6} }{2} = \frac{ \frac{24}{6} }{2} = \frac{24}{6} \cdot \frac{1}{2} = \frac{24}{12} =2 \\ \\ \boxed{M_a=2}$