Page 14 - modul ukuran penyebaran data

 Letak Q1 = = 1 . 100 =  Letak Q3 = 3.100 = 300 =
4 4 4 4
25, data ke 25 = 59 – 68 75, data ke 75 = 79 – 88

 B1 = bb – 0,5 = 59 – 0,5 =  B1 = bb – 0,5 = 79 – 0,5 =
58,5 78,5

 i = 10  i = 10

 Cfb = 10  Cfb = 55

 FQ = 15  FQ = 20

3
( )− ( )−
Q1 = 1 + 4 . Q3 = 1 + 4 .

25 −10 75 −55
= 58,5 + . 10 = 78,5 + . 10
15 20
= 58,5 + 10 = 78,5 + 10

Q1 = 68,5 Q3 = 88,5

 Qd = −

= , − ,

=

= 10, jadi simpangan kuartil data diatas adalah 10.

QUIZZ

8
UKURAN PENYEBARAN DATA KELAS X SMA
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