Carika. Pertanyaan saya

mean= (1×10)+(2×9)+(4×8)+(3×7)+(5×6)+(2×5)+(1×4) / (1 + 2 + 4 + 3 + 5 + 2 + 1

= 10 + 18 + 32 + 21 + 30 + 10 + 4 / 18
= 125/18
= 6,7
modus = nilai 6
median = nilai ke 9 + ke 10 ÷ 2 =( 7 + 7 ) ÷ 2 = 7
dbwh rata2 = 5 + 2 + 1 = 8
d atas rata² = 1 + 2 + 4 + 3 = 10