Question

aflati media aritmetică
a) 1 supra 8 ; 5 supra 12; 7 supra 18
b) 1 supra 3 ; 5 supra 4 ; 2 1 supra 6 coroana

Answer 1

a)=9/72+30/72+28/72 totul supra 3=67/72*1/3=67/216
b)=8/24+30/24+84/24 totul supra 3=122/24*1/3=122/72=61/36