data tunggal —> data kelompok

Rumus

  • jangkauan = J = Xmax - Xmin

  • Banyak interval = K = 1+3,3 log n

  • Panjang kelas = C = J_K

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stepssteps

J = 74-45 = 29

K = 1+3,3 log 48 = 6,548 ≈> 7

C = 29÷7 = 4,14 ≈ 5