Răspuns:
!!!!!!!!!!!!!!!!!!avem 30 elevi
Explicație pas cu pas:
7 elevi au avut nota 8
CITIRE DIRECTA IN DREPTUL NOTEI 8
sub 5...2/30=1/15=0,0(6)=6,(6)%≈6,67%
5......3/30=1/10=10%
6,,,,,,,,,,,5/30=1/6=-,1(6)=16.(6)%≈16,67%
7............6/30=1/5=0,2=20%
8...........7.30=0,2(3) =23,(3)%≈23,33%
9.........4/30=2/15=0,1(3)=13,(3)%≈13.33%
10...........3/30=1/10=10%