Question

Tentukan kuartil bawah dari data: 15,20,14,16,14,16,17,9,10,12

Answer 1

Penyelesaian

urut = 9, 10, 12, 14, 14, 15, 16, 16, 17, 20

Q1 = (1/4) x (n + 1)

= (1/4) x (10 + 1)

= 2.75

= nilai ke-2 + (0.75 x (3 - 2))

= 10 + (0.75 x (12-10))

= 11.5

Q1 = 11.5 (kuartil pertama atau bawah)