cara menghitung nilai diatas rata rata datang gimana yaa

(nilai×frekuensi) ÷ jumlah frekuensi

Mean (rata-rata) = [(5×4)+(6×13)+(7×12)+(8×7)+(9×3)+(10×2)] ÷ (4+13+12+7+3+2)
= (20+78+84+56+27+20) ÷ 41
= 285 ÷ 41
= 6,95

siswa yg mendapat nilai diatas rata"
= (nilai 7, 8, 9, 10)
= 12 + 7 + 3 + 2
= 24 siswa