Simpangan kuartil dari data:9,3,12,6,8,7,5,2,10,4,11 adalah...

2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
Q1 = 4
Q2 = 7
Q3 = 10
Qd =Q3 - Q1
= 10-4
= 6
Qs = 1/2 × 6
= 3

insyaallah jawabannya benar