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UKURAN LETAK DATA
BY:
ZULFA SUSAN ELYANA (1615310001)
FAKULTAS EKONOMI DAN BISNIS
PROGRAM STUDI MANAJEMEN
SEMESTER II (DUA)
UNIVERSITAS PEMBANGUNAN PANCA BUDI
UKURAN LETAK DATA
• KUARTIL (Q)
KUARTIL ADALAH UKURAN LETAK YANG MEMBAGI SUATU DISTRIBUSI MENJADI 4
BAGIAN YANG SAMA. KUARTIL TERBAGI MENJADI 2 JENIS YAITU KUARTIL DATA
TUNGGAL DAN KUARTIL DATA BERKELOMPOK:
1. KUARTIL DATA TUNGGAL
a. KUARTIL PERTAMA/BAWAH
Q1 =
1(𝑛+1)
4
b. KUARTIL KEDUA/TENGAH
Q2 =
1(𝑛+1)
4
c. KUARTIL KETIGA/ATAS
Q3 =
3(𝑛+1)
4
2. KUARTIL DATA KELOMPOK
SECARA UMUM RUMUS UNTUK KUARTIL DATA BERKELOMPOK
ADALAH:
𝑸𝒊 = 𝑳𝒐 + 𝒊
𝒊𝒏
𝟒
− 𝑭
𝒇
KETERANGAN:
LO = TEPI BAWAH KELAS KUARTIL
N = BANYAK DATA
F = FREKUENSI KUMULATIF SEBELUM KELAS KUARTIL
F = FREKUENSI KELAS KUARTIL
I = INTERVAL/PANJANG KELAS
• DESIL (D)
DESIL MEMBAGI DATA MENJADI SEPULUH BAGIAN YANG SAMA BESAR. DESIL DIBAGI MENJADI 2 JENIS YAITU
DESIL DATA TUNGGAL SERTA DESIL DATA BERKELOMPOK:
1. DESIL DATA TUNGGAL
RUMUS SECARA UMUM:
DI =
𝒊(𝒏+𝟏)
𝟏𝟎
2. DESIL DATA KELOMPOK
RUMUS SECARA UMUM:
DI = 𝑳𝒐 + 𝒊
𝒊𝒏
𝟏𝟎
−𝑭
𝒇
KETERANGAN:
LO = TEPI BAWAH KELAS DESIL
N = BANYAK DATA
F = FREKUENSI KUMULATIF SEBELUM KELAS DESIL
F = FREKUENSI KELAS DESIL
I = INTERVAL/PANJANG KELAS
• PERSENTIL (P)
PERSENTIL ADALAH DATA YANG TERBAGI MENJADI 100 BAGIAN YANG SAMA. PERSENTIL
DIBAGI MENJADI DUA BAGIAN, YAITU:
1. PERSENTIL DATA TUNGGAL
RUMUS SECARA UMUM:
PI =
𝒊(𝒏+𝟏)
𝟏𝟎𝟎
2. PERSENTIL DATA TUNGGAL
RUMUS UNTUK PERSENTIL BERKELOMPOK:
PI = 𝑳𝒐 + 𝒊
𝒊𝒏
𝟏𝟎𝟎
−𝑭
𝒇
KETERANGAN:
LO = TEPI BAWAH KELAS PERSENTIL
N = BANYAKNYA DATA
F = FREKUENSI KUMULATIF SEBELUM KELAS PERSENTIL
F = FREKUENSI KELAS PERSENTIL
I = INTERVAL/PANJANG KELAS
SOAL: UKURAN LETAK DATA
• DATA NILAI STATISTIKA BERIKUT INI :
Nilai Frekuensi
50 – 59
60 – 69
70 – 79
80 – 89
90 – 99
6
10
14
6
4
Jumlah 40
TENTUKAN:
1. KUARTIL 2 !
2. KUARTIL 3 !
3. DESIL 6 !
4. PERSENTIL 27 !
5. PERSENTIL 80 !
PENYELESAIAN SOAL UKURAN LETAK DATA
1. Q2 = 2N/4= 80/4= 20 → BERADA DI KELAS KETIGA → 70 – 79 → LO = 69,5
Q2 = 2N/4= 20, SEHINGGA F = 16 DAN F = 14
Q2 = 𝐿𝑜 + 𝑖
2𝑛
4
−𝐹
𝑓
= 69,5 + 10
20 −16
14
= 72,3
2. Q3 = 3N/4= 120/4= 30 → BERADA DI KELAS KEEMPAT → 80 – 89 → LO=79,5
Q3 = 3N/4= 30, SEHINGGA F = 30 DAN F = 6
Q3 = 𝐿𝑜 + 𝑖
3𝑛
4
−𝐹
𝑓
= 79,5 + 10
30 − 30
6
= 79,5
3. D6 = 6N/10 = 240/10 = 24 → BERADA DI KELAS 3 → 70 – 79 → LO =
69,5
D6 = 6N/10 = 24, SEHINGGA F = 16 DAN F = 14
D6 = 𝐿𝑜 + 𝑖
6𝑛
10
−𝐹
𝑓
= 69,5 + 10
24 −16
14
= 75,2
4. P27 = 27N/100 = 1080/100 = 10,8 → BERADA DI KELAS 3 → 70 – 79 →
LO = 69,5
P27 = 27N/100 = 10,8; SEHINGGA F = 16 DAN F = 14
P27 = 𝐿𝑜 + 𝑖
27𝑛
100
−𝐹
𝑓
= 69,5 + 10
10,8 −16
14
= 65,8
5. P80 = 80N/100 = 3200/100 = 32 → BERADA DI KELAS 4 → 80 – 89 →
LO=79,5
P80 = 80N/100 = 32, SEHINGGA F = 30 DAN F = 6
P80 = 𝐿𝑜 + 𝑖
80𝑛
100
−𝐹
𝑓
= 79,5 + 10
32 −30
6
= 82,8
SEKIAN
DAN
TERIMA KASIH
BY:
ZULFA SUSAN ELYANA (1615310001)
UNIVERSITAS PEMBANGUNAN PANCA BUDI

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Ukuran letak data presentation

  • 1. UKURAN LETAK DATA BY: ZULFA SUSAN ELYANA (1615310001) FAKULTAS EKONOMI DAN BISNIS PROGRAM STUDI MANAJEMEN SEMESTER II (DUA) UNIVERSITAS PEMBANGUNAN PANCA BUDI
  • 2. UKURAN LETAK DATA • KUARTIL (Q) KUARTIL ADALAH UKURAN LETAK YANG MEMBAGI SUATU DISTRIBUSI MENJADI 4 BAGIAN YANG SAMA. KUARTIL TERBAGI MENJADI 2 JENIS YAITU KUARTIL DATA TUNGGAL DAN KUARTIL DATA BERKELOMPOK: 1. KUARTIL DATA TUNGGAL a. KUARTIL PERTAMA/BAWAH Q1 = 1(𝑛+1) 4 b. KUARTIL KEDUA/TENGAH Q2 = 1(𝑛+1) 4 c. KUARTIL KETIGA/ATAS Q3 = 3(𝑛+1) 4
  • 3. 2. KUARTIL DATA KELOMPOK SECARA UMUM RUMUS UNTUK KUARTIL DATA BERKELOMPOK ADALAH: 𝑸𝒊 = 𝑳𝒐 + 𝒊 𝒊𝒏 𝟒 − 𝑭 𝒇 KETERANGAN: LO = TEPI BAWAH KELAS KUARTIL N = BANYAK DATA F = FREKUENSI KUMULATIF SEBELUM KELAS KUARTIL F = FREKUENSI KELAS KUARTIL I = INTERVAL/PANJANG KELAS
  • 4. • DESIL (D) DESIL MEMBAGI DATA MENJADI SEPULUH BAGIAN YANG SAMA BESAR. DESIL DIBAGI MENJADI 2 JENIS YAITU DESIL DATA TUNGGAL SERTA DESIL DATA BERKELOMPOK: 1. DESIL DATA TUNGGAL RUMUS SECARA UMUM: DI = 𝒊(𝒏+𝟏) 𝟏𝟎 2. DESIL DATA KELOMPOK RUMUS SECARA UMUM: DI = 𝑳𝒐 + 𝒊 𝒊𝒏 𝟏𝟎 −𝑭 𝒇 KETERANGAN: LO = TEPI BAWAH KELAS DESIL N = BANYAK DATA F = FREKUENSI KUMULATIF SEBELUM KELAS DESIL F = FREKUENSI KELAS DESIL I = INTERVAL/PANJANG KELAS
  • 5. • PERSENTIL (P) PERSENTIL ADALAH DATA YANG TERBAGI MENJADI 100 BAGIAN YANG SAMA. PERSENTIL DIBAGI MENJADI DUA BAGIAN, YAITU: 1. PERSENTIL DATA TUNGGAL RUMUS SECARA UMUM: PI = 𝒊(𝒏+𝟏) 𝟏𝟎𝟎 2. PERSENTIL DATA TUNGGAL RUMUS UNTUK PERSENTIL BERKELOMPOK: PI = 𝑳𝒐 + 𝒊 𝒊𝒏 𝟏𝟎𝟎 −𝑭 𝒇 KETERANGAN: LO = TEPI BAWAH KELAS PERSENTIL N = BANYAKNYA DATA F = FREKUENSI KUMULATIF SEBELUM KELAS PERSENTIL F = FREKUENSI KELAS PERSENTIL I = INTERVAL/PANJANG KELAS
  • 6. SOAL: UKURAN LETAK DATA • DATA NILAI STATISTIKA BERIKUT INI : Nilai Frekuensi 50 – 59 60 – 69 70 – 79 80 – 89 90 – 99 6 10 14 6 4 Jumlah 40
  • 7. TENTUKAN: 1. KUARTIL 2 ! 2. KUARTIL 3 ! 3. DESIL 6 ! 4. PERSENTIL 27 ! 5. PERSENTIL 80 !
  • 8. PENYELESAIAN SOAL UKURAN LETAK DATA 1. Q2 = 2N/4= 80/4= 20 → BERADA DI KELAS KETIGA → 70 – 79 → LO = 69,5 Q2 = 2N/4= 20, SEHINGGA F = 16 DAN F = 14 Q2 = 𝐿𝑜 + 𝑖 2𝑛 4 −𝐹 𝑓 = 69,5 + 10 20 −16 14 = 72,3 2. Q3 = 3N/4= 120/4= 30 → BERADA DI KELAS KEEMPAT → 80 – 89 → LO=79,5 Q3 = 3N/4= 30, SEHINGGA F = 30 DAN F = 6 Q3 = 𝐿𝑜 + 𝑖 3𝑛 4 −𝐹 𝑓 = 79,5 + 10 30 − 30 6 = 79,5
  • 9. 3. D6 = 6N/10 = 240/10 = 24 → BERADA DI KELAS 3 → 70 – 79 → LO = 69,5 D6 = 6N/10 = 24, SEHINGGA F = 16 DAN F = 14 D6 = 𝐿𝑜 + 𝑖 6𝑛 10 −𝐹 𝑓 = 69,5 + 10 24 −16 14 = 75,2 4. P27 = 27N/100 = 1080/100 = 10,8 → BERADA DI KELAS 3 → 70 – 79 → LO = 69,5 P27 = 27N/100 = 10,8; SEHINGGA F = 16 DAN F = 14 P27 = 𝐿𝑜 + 𝑖 27𝑛 100 −𝐹 𝑓 = 69,5 + 10 10,8 −16 14 = 65,8 5. P80 = 80N/100 = 3200/100 = 32 → BERADA DI KELAS 4 → 80 – 89 → LO=79,5 P80 = 80N/100 = 32, SEHINGGA F = 30 DAN F = 6 P80 = 𝐿𝑜 + 𝑖 80𝑛 100 −𝐹 𝑓 = 79,5 + 10 32 −30 6 = 82,8
  • 10. SEKIAN DAN TERIMA KASIH BY: ZULFA SUSAN ELYANA (1615310001) UNIVERSITAS PEMBANGUNAN PANCA BUDI