Question

media aritmetica a 10 nr rationale de 10 .Daca marim fiecare numar cu 5 atunci cat va fi media aritmetica?

Answer 1

Ma = (a+b+c+d+e+f+g+h+i+j)/10=10
a+b+c+d+e+f+g+h+i+j=10*10
a+b+c+d+e+f+g+h+i+j=100

daca marim fiecare numar cu 5 :

Ma = (100+5*10)/10 = (100+50)/10=150/10=15