• Matematika
  • STATISTIKA Kelas 12 SMA
  • Statistika Inferensia
  • Frekuensi Harapan

Video solusi : Pada Tabel 6.3 diketahui data tinggi badan siswa Kelas XII SMA di suatu sekolah. Dari data tersebut tentukanlah nilai rata-rata, varians, dan simpangan bakunya. Datanya dapat disajikan dalam tabel berikut. Tabel 6.3 Data Tinggi Badan No Nama Tinggi (X - mu) (X - mu)^2 1. Ani 150 -15,0 225,0 2. Rudi 165 0,0 0,0 3. Lala 160 -5,0 25,0 4. Yose 180 15,0 225,0 5. Velly 163 -2,0 4,0 6. Angga 185 20,0 400,0 7. Bian 168 3,0 9,0 8. Wilma 177 12,0 144,0 9. Rika 158 -7,0 49,0 10. Kania 156 -9,0 81,0 11. Fredy 170 5,0 25,0 12. Ayu 166 1,0 1,0 13. Nadia 154 -11,0 121,0 14. Firza 166 1,0 1,0 15. Rully 180 15,0 225,0 16. Keysha 163 -2,0 4,0 17. Sonya 155 -10,0 100,0 18. Haris 163 -2,0 4,0 19. Luki 175 10,0 100,0 20. Firman 165 0,0 0,0 21. Yuanita 160 -5,0 25,0 22. Mila 160 -5,0 25,0 23. Akmal 157 -8,0 64,0 24. Hendri 163 -2,0 4,0 25. Adit 172 7,0 49,0 26. Andi 168,0 3,0 9,0 27. Wayan 165 0,0 0,0 28. Davin 175 10,0 100,0 29. Elyzabeth 154 -11,0 121,0 30. Selfi 157 -8,0 64,0 Total 4950 0 2204

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