minta jawabannya no 38-40!!!! pake cara yaaa......

no.38
urutan:140,150,150,150,160,160,160,170,180,180
median=160+160=320:2=160(C)
no.39
rata rata=(8×2)+(10×0,5)+(8×2)+(14×4):8+10+8+14 =(16+5+16+56):40=93:40=2,325(B)
no.40
n.tertinggi=65
n.terendah=27
65-27=38(A)