tolong jawab &pakai cara!

52+55+72+63+55+60+70 = 427 : 7 = 61

20+18+10+24 = 72 : 4 = 18

60,70,70,70,80,80,90,90,90,100 => (80+80) : 2 = 80

x = ( 52 + 55 + 72 + 63 + 55 + 60 + 70) / 7
x = 427 / 7
x = 61 kg
jadi rata² penjualan = 61 kg ( C )

x = ( 20 + 18 + 10 + 24 ) / 4
x = 72 / 4
x = 18 ( C )

urutan data : 60 , 70 , 70 , 70 , 80 , 80 , 90 , 90 , 90 , 100
jumlah frekuensi = 10
nilai median = ( nilai ke 5 + 6) ÷ 2
= ( 80 + 80 ) ÷ 2
= 160 ÷ 2
= 80