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UKURAN NILAI SENTRAL

UKURAN NILAI SENTRAL. Macam Nilai Sentral. rata-rata (aritmatic mean) median (nilai tengah) modus (mode) rata-rata ukur (geometric mean) rata-rata harmoni (harmonic mean) rata-rata kuadrat (quadratic mean). 1. Aritmatic Mean. Rata-rata Hitung Sederhana.

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UKURAN NILAI SENTRAL

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  1. UKURAN NILAI SENTRAL

  2. Macam Nilai Sentral rata-rata (aritmatic mean) median (nilai tengah) modus (mode) rata-rata ukur (geometric mean) rata-rata harmoni (harmonic mean) rata-rata kuadrat (quadratic mean)

  3. 1. Aritmatic Mean Rata-rata Hitung Sederhana F = frekuensiN = jumlah dataX = nilai tengahA = Assumed meanCi = interval kelasD = deviasi dalam interval Data Tidak Berkelompok Data Berkelompok

  4. Weighted Mean Secara subyektif Pemberian faktor penimbang didasarkan pada pandangan masing-masing individu Secara obyektif Penentuan faktor penimbang ditentukan berdasarkan arti penting barang Rumus

  5. Contoh Kasus

  6. 2. Median a. Data Tidak Berkelompok b. Data Berkelompok TK = tepi kelas dari kelas median yg diatasnyaFHT = frekuensi komulatif yg harus ditambahkan utk mencapai medFKM = frekuensi pada kelas medianCi = interval kelasMed = nilai median

  7. Contoh Median Md=25 Letak median = N/2 = 50/2 = 25

  8. 3. Modus a. Data tidak berkelompok dan Jenis Modus a. no modul b. mono modul c. bi modul b. Data Berkelompok Li = tepi kelas bawah dari kelas modus yg diatasnyad1 = selisih frekuensi modus dengan frekuensi sebelumnya d2 = selisih frekuensi modus dengan frekuensi sesudahnya Ci = interval kelasMo = nilai modus

  9. Contoh Modus d1 Frekuensi Modus d2

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