Jawabanmu

2014-09-12T21:15:46+07:00
Q1 = 1/4 (9+1) = 10/4 =2,5 >> kuartil bawah
Q2 = 2/4 (9+1) = 20 /4 = 5 >>median
Q3 = 3/4 (9+1) = 30/4= 7,5 >> kuartil atas
2014-09-12T21:16:04+07:00
Diurutkan dulu : 4,5,5,6,6,6,7,7,8
kuartil bawah : nilai tengah data sesudah median
median = 6
kuartil bawah = 5 + 5 / 2 =5,5.