simpangan kuartil dari 1,2,4,4,5,5,6,8,9

MAPEL = MATEMATIKA
KELAS = 9
BAB = DATA STATISTIK

urutkan data
1,2,4,4,5,5,6,8,9
n(data) = 9

Q2 = 5

Q1 = 2 + 4/2
Q1 = 6/2
Q1 = 3

Q3 = 6 + 8/2
Q3 = 14/2
Q3 = 7

simpangan quartil = ½( Q3 - Q1 )
= ½ ( 7 - 3 )
= ½ ( 4 )
= 2

semoga membantu

1, 2, 4, 4, 5, 5, 6, 8, 9
n = 9

Q1 [kuartil bawah]
= (n + 1) / 4
= (9 + 1) / 4
= 10 / 4
= 2,5 →️ data ke 2,5
= 3

Q3 [kuartil atas]
= 3 (n + 1) / 4
= 3 (9 + 1) / 4
= 3 × 10 / 4
= 30 / 4
= 7,5 →️ data ke 7,5
= 7

Qd [simpangan kuartil]
= ½ (Q3 - Q1)
= ½ (7 - 3)
= ½ × 4
= 2

⬛⬛⬛⬛⬛⬛⬛⬛⬛⬛⬛⬛⬛⬛

☛️ Jadi, simpangan kuartil dari data diatas adalah 2.