Question

1.Calculați media arimetică a numerelor:
a) 21;7
b)9;7;2
c)100;40 39; 11;
d)5,12, 17,3; 1,01;

Answer 1

a) (21+7):2=28:2=14

b) (9+7+2):3=18:3=6

c) (100+40+39+11):4=190:4=47,5

d) (5,12+17,3+1,01):3=23,43:3=7,81

Answer 2

A) (21+7):2=16
B) (9+7+2):3=6
C) (100+40+39+11):4=47,5
D) (5,12+17,3+1,01):4=(5,12+17,30+1,01):4=(22,42+1,01):4=23,43:4=5,8575