Tabel Berat Badan Siswa Kelas VI SD : Berat Badan(Kg):28,29,30,31,32,34,35,37,39,40 Banya Siswa:5,2,3,1,4,7,3,3,4,2 Hitunglah rata2 berat badan siswa berdasarka

28 X 5 = 140
29 X 2 = 58
30 X 3 = 90
31 X 1 = 31
32 X 4 = 128
34 X 7 = 238
35 X 3 = 105
37 X 3 = 111
39 X 4 = 156
40 X 2 = 80
jumlah nilai = 140 + 58 + 90 + 31 + 128 + 238 + 105 + 111 + 156 + 80
                   = 1137
jumlah murid = 5 + 2 + 3 + 1 + 4 + 7 + 3 + 3 + 4 + 2
                     = 34
rata - rata = 1137 : 34
                = 33,441
                = 33 kg