Question

calculaati media aritmetica a numerelor a,1,8,36; b,20,81,103; c,12345,21,675; d,2x,4x,5x,9x; e,12,14,16 si 18; f,80,43 si 66

Answer 1

 a,1,8,36;
media aritmetica= 1+8+36 totul supra 3=9+36/3=45/3=15
b,20,81,103;
 media aritmetica= 20+81+103 totul supra 3= 101+103/3=204/3=64
c,12345,21,675;
 media artimetica= 12345+21+675 totul supra 3= 12366+675/3=13041/3=4347
d,2x,4x,5x,9x;
media aritmetica=2x+4x+5x+9x totul supra 4=20x/4=5x
e,12,14,16 si 18
media aritmetica=12+14+16+18 totul supra 4=42+18/4=60/4=15
  f,80,43 si 66
media aritmetica= 80+43+66 totul supra 3= 123+66/3=189/3=63