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=(2×1)+(3×3)+(4×4)+(5×6)+(6×7)+(7×8)+(8×6)+(9×3)+(10×2):40
=2+9+16+30+42+56+48+27+20:40
=57+98+48+47:40
=155+95:40
=250:40
=6,2
median=6
modus=7