Page 33 - E-Modul Statistika Kelas VIII SMP Semester 2_Karina Mirsa Putri_1830206090

3. Data:

19 20 18 19 15
13 17 15 14 19

16 17 16 18 18
14 13 20 15 20 Banyaknya data (n) = 20

a) Jangkauan
 Xmax = 20

 Xmin = 13

 Jangkauan (R) = Xmax – Xmin
= 20 – 13

= 7

b) Jangkauan Interkuartil

JAK = Q3 – Q1
JAK = 17 – 15
JAK = 2

c) Simpangan Kuartil
1
Q = 17 − 15
d
2
1
Q = 2
d
2
1
Q = 2 = 1
d
2
4. Perhatikan tabel.
Q1 Q2 Q3

Ukuran Sepatu 36 37 38 39 40 41
Frekuensi 22 18 24 14 17 5

Frekuensi Kumulatif (fk) 22 40 64 78 95 100

n = 100

a) Jangkauan

 Xmax = 41
 Xmin = 36

 Jangkauan (R) = 41 – 36

= 5

E-Modul Statistika Kelas VIII SMP Semester 2 (Pembahasan Soal) 28