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Simpangan kuartil dari 11, 12, 11, 13, 13, 12, 11, 14, 15, 12, 14

Simpangan kuartil dari 11, 12, 11, 13, 13, 12, 11, 14, 15, 12, 14!

Jawab:

Data terurut: 11, 11,11, 12, 12,12, 13, 13,14, 14, 15

Qd= …. ?

    Q1= data ke-3 = 11

    Q3= data ke-9 = 14

    Qd= ½ (Q3– Q1) = ½ (14 – 11) = 1,5

Jadi simpangan kuartilnya adalah 1,5.