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Q1 = 4,5.
Q2 = 5,5.
Q3 = 6,5.
Simpangan Interkuartil = 1/2 . (Q3 - Q1) = 1/2 . 6,5 - 4,5 = 1.
12. 4+5+5+5+6+6+6+7+7+7+8+8+8+9 = 91/14 = 6,5.
13. A. Populasi.
14. 4 X 6 = 24.
15. 4/52 = 1/13.
16. 25/10 = 2/5.
17. 2/3 X 45 = 30.
18. Uang Logam = n (s) = 2.
Dadu = n (s) = 6.
Semestanya = 2 X 6 = 12.
Peluang Muncul Angka Pada Mata Uang Logam = 1/12.
Peluang Muncul Bilangan Prima Pada Dadu = 3/12.
1/12 + 3/12 = 4/12 = 1/3.
19. IPS = 5/10 X 30 = 15 siswa.
IPA = 3/10 X 30 = 9 siswa.
Matematika = 15 + 9 = 24 siswa = 24/10 = 2,4 siswa.
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