perhatikan tabel berikut nilai 3,4 ,5,6,7,8,9 frekuensi 3,2,8,12,10,3,2 tentukan A.jangkauan B. kuartil bawah,median,kuartil atas C.jangkauan interkuartil dan s

3, 3, 3, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 9, 9,----> n = 40
a. jangkauan = 9 - 3 = 6

b. Q1 (kuartil bawah)= 1/4 (40 +1) = 10, 5 (urutan data ke- 10, 5 ) = 5, 5
Q2 (Median )= 1/4 (80+2) = 20, 5( urutan data ke- 20, 5)= 6, 5
Q3( kuartil atas) = 1/4 (120+2)= 30, 5( urutan data ke - 30, 5)= 7, 5

c. QR (jangkauan interkuartil) = Q3-Q1 = 7, 5 - 5, 5 = 2