bab 2 penyajian distribusi frekuensi
TRANSCRIPT
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TABEL DISTRIBUSI FREKUENSI
Statistika & Probabilitas
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TABEL DISTRIBUSI FREKUENSI
Data kuantitatif dengan skala interval atau
rasio
Kategori / kelompok tidak tersedia
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LANGKAH PENYUSUNAN
Menentukan nilai minimal-maksimal
Menentukan range/jangkauan data
R = data maksimal – data minimal
Menentukan jumlah kelas/kelompok
k = 1 + 3.32 log (n)
2k ≥ n
Menentukan lebar/interval kelas
i = R / k (nilai dibulatkan ke satuan terbesar)
Rekap data sesuai interval yang disusun
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DATA KECEPATAN UPLOAD
27.5 33.0 15.0 44.7 59.1 41.5 50.0 49.0
40.8 51.1 47.9 40.7 66.3 42.3 46.8 34.5
42.1 29.0 62.6 58.5 61.8 38.5 72.3 58.1
23.9 65.7 44.8 69.1 66.4 44.7 59.6 31.0
54.2 56.8 47.8 38.8 32.0 43.8 45.0 60.5
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TABEL DISTRIBUSI FREKUENSI
Nilai minimal = 15.0
Nilai maksimal = 72.3
Range = 72.3 – 15.0 = 57.3
Kelas : 2k ≥ 40, k=6, 7, dst. dipilih k=6
Interval = 57.3 / 6 = 9.55 ≈ 9.6 (sesuai digit
data yang digunakan)
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REKAP DATA DALAM TABEL
tepibawah
tepiatas
turus frekuensi
15.0 24.5 || 2
24.6 34.1 |||| 5
34.2 43.7 |||| ||| 8
43.8 53.3 |||| |||| | 11
53.4 62.9 |||| |||| 9
63.0 72.3 |||| 5
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TABEL DISTRIBUSI FREKUENSI REALTIF
tepibawah
tepiatas
frekuensiFrekuensi
relatif
15.0 24.5 2 5.0%
24.6 34.1 5 12.5%
34.2 43.7 8 20.0%
43.8 53.3 11 27.5%
53.4 62.9 9 22.5%
63.0 72.3 5 12.5%
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TABEL DISTRIBUSI KUMULATIF
Kurangdari
Frekuensikumulatif
≤14.9 0
≤24.5 2
≤34.1 7
≤43.7 15
≤53.3 26
≤62.9 35
≤72.3 40
Lebihdari
Frekuensikumulatif
≥14.9 40
≥24.5 38
≥34.1 33
≥43.7 25
≥53.3 14
≥62.9 5
≥72.3 0
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HISTOGRAM FREKUENSI
tepibawah
tepiatas
Batas Bawah
Batas Atas
frekuensi
15.0 24.5 14.95 24.55 2
24.6 34.1 24.55 34.15 5
34.2 43.7 34.15 43.75 8
43.8 53.3 43.75 53.35 11
53.4 62.9 53.35 62.95 9
63.0 72.3 62.95 72.35 5
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HISTOGRAM FREKUENSI
0
2
4
6
8
10
12
14.95 24.55 34.15 43.75 53.35 62.95 72.35
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POLIGON FREKUENSI
tepibawah
tepiatas
Nilaitengah
frekuensi
9.65 015.0 24.5 19.75 224.6 34.1 29.35 534.2 43.7 38.95 843.8 53.3 48.55 1153.4 62.9 58.15 963.0 72.3 67.75 5
72.35 0
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POLIGON FREKUENSI
0
2
4
6
8
10
12
9.65 19.75 29.35 38.95 48.55 58.15 67.75 77.35
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OGIF
Kurangdari
F
≤14.9 0≤24.5 2≤34.1 7≤43.7 15≤53.3 26≤62.9 35≤72.3 40
0
5
10
15
20
25
30
35
40
45
≤14.9 ≤24.5 ≤34.1 ≤43.7 ≤53.3 ≤62.9 ≤72.3
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OGIF
Lebihdari
Fr
≥14.9 40
≥24.5 38
≥34.1 33
≥43.7 25
≥53.3 14
≥62.9 5
≥72.3 0 0
5
10
15
20
25
30
35
40
45
≥14.9 ≥24.5 ≥34.1 ≥43.7 ≥53.3 ≥62.9 ≥72.3
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TUGAS INDIVIDU
Lakukan pengukuran terhadap objek untukmemperoleh data kuantitatif dengan skalapengukuran interval atau rasio sebanyakminimal 50 buah
Sajikan dalam bentuk tabel distribusifrekuensi
Sajikan dalam bentuk grafis yang sesuai(histogram, poligon, ogif)
Buat dalam makalah dengan format jurnal(lihat tatacara penulisan di USI STTG)