NPM : 30416751 (ganjil)

15	32	45	46	42	39	68	47	18
31	48	49	56	52	39	48	69	61
44	42	38	52	55	58	62	58	48
56	58	48	47	52	37	64	29	55
38	29	62	49	69	18	61	55	49

Banyak Kelas = 1 + 3,322 log n
                        = 1 + 3,322 log 45
                        = 6,492
                        = 7 kelas

Interval = rentang / kelas
              = (69 - 15) / 7
              = 54 / 7
              = 7,714
              = 8

KELAS FREKUENSI 15-22 3 23-30 2 31-38 5 39-46 7 47-54 12 55-62 12 63-70 4