Question

Cu cât se modifica Media aritmetică a numerelor 101,102,103,104daca se mai adaugă numarul 102?

Answer 1

$\frac{101+102+103+104}{4}= \frac{410}{4} =102.5$
$\frac{101+102+102+103+104}{5}= \frac{512}{5}=102.4$

$102.5-102.4=0.1$

Answer 2

(101+102+103+104):4=410:4=29.(2857) 
(101+102+102+103+104):5=503:5=100.6
100.6-29.(2857)=71.5972(2857)
coroooanaaaaaaa??