
Ukuran Penyebaran Data
Presentation
•
Mathematics
•
12th Grade
•
Medium
Dewa Sutadnyana
Used 63+ times
FREE Resource
8 Slides • 5 Questions
1
UKURAN PENYEBARAN DATA
Ukuran penyebaran data adalah suatu ukuran yang menyatakan seberapa besar nilai-nilai data berbeda atau bervariasi dengan nilai ukuran pusatnya atau seberapa besar penyimpangan nilai-nilai data dengan nilai pusatnya.
2
Jangkauan Data
A. JANGKAUAN (RANGE)
Jangkauan (J) adalah selisih antara datum terbesar dengan datum terkecil
J = Xmaks- Xmin
Contoh:
Diketahui data: 2, 5, 3, 8, 7, 6, 9, 4, 9. Tentukan jangkauan data itu!
Jawaban:
J = Xmaks- Xmin = 9 - 2 = 7
3
B. JANGKAUAN INTERKUARTIL (HAMPARAN)
Jangkauan interkuartil adalah selisih antara kuartil atas dan kuartil bawah :
H = Q3 - Q1
Contoh Soal:
Tentukan Jangkauan inter kuartil dari data: 2, 5, 3, 8, 7, 6, 9, 4, 9.
Jawaban:
Urutan data:
4
C. SIMPANGAN KUARTIL ATAU JANGKAUAN SEMI INTERKUARTIL (Qd)
Contoh Soal:
Tentukan Simpangan kuartil dari data: 2, 5, 3, 8, 7, 6, 9, 4, 9.
Jawaban:
5
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D. SIMPANGAN RATA-RATA
9
Contoh 1:
Tentukan simpangan rata-rata dari data 2, 4, 5, 8, 11
Jawaban:
​
10
Contoh 2
Tentukan simpangan rata-rata data pada tabel distribusi frekuensi di bawah ini.
11
Jawaban:
12
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UKURAN PENYEBARAN DATA
Ukuran penyebaran data adalah suatu ukuran yang menyatakan seberapa besar nilai-nilai data berbeda atau bervariasi dengan nilai ukuran pusatnya atau seberapa besar penyimpangan nilai-nilai data dengan nilai pusatnya.
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