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Verified answer
Mapel : MatematikaBab : Ukuran Pemusatan
Mean = Jumlah semua data/ Banyaknya frekuensi
Mean = 15 x 52 kg + 25 x 48 kg / 15 + 25
Mean = 780 + 1.200 / 40
Mean = 1.980 / 40
Mean = 49,5 kg