Penjelasan dengan langkah-langkah:
total data = 15
a.
30, 40, 60, 60, 70, 70, 70, 80, 80, 80, 80, 90, 90, 100, 100
b.
Jangkauan = nilai tertinggi - nilai terendah
= 100 - 30
= 70
c.
Q1 = ¼ × 15
= 3,75 --> data ke 4
= 60
Q2 = ½ × 15
= 7,5 --> data ke 8
= 80
Q3 = ¾ × 15
= 11,25 --> data ke 12
= 90
d.
Jangkauan interkuartil (h) = Q3 - Q1
= 90 - 60
= 30
e.
Simpangan kuartil = ½ h
= ½ × 30
= 15
Semoga membantu ya...
Penjelasan dengan langkah-langkah:
a) urutan data :
30, 40, 60, 60, 70, 70, 70, 80, 80, 80, 80, 90, 90, 100, 100.
b) jangkauan = 100 – 30 = 70
c) Q1 = 60
Q2 = 80
Q3 = 90
d) jangkauan interkuartil = Q3 – Q1
= 90 – 60
= 30
e) simpangan interkuartil = (Q3 – Q1)/2
= 30/2
= 15
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