
Kuis Statistika
Authored by Maria Fajarlestari
Mathematics
University

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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Teorema Bayes digunakan untuk:
Menghitung peluang gabungan dua peristiwa
Menghitung peluang bersyarat berdasarkan informasi baru
Menentukan distribusi frekuensi
Menghitung peluang total
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Suatu sistem memiliki dua server, A (60%) dan B (40%). A error 10%, B error 20%. Jika terjadi error, peluang berasal dari B adalah:
0.444
0.556
0.60
0.40
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Seorang pengguna login dari dua wilayah: 70% dari Indonesia, 30% dari luar. 5% dari Indonesia dan 20% dari luar gagal login. Jika login gagal, peluang pengguna dari luar negeri:
0.15
0.23
0.46
0.50
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fungsi utama teorema Bayes dalam sistem informasi adalah:
Melaporkan data
Menyimpan data
Memprediksi probabilitas berdasarkan data sebelumnya
Menghapus data lama
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Jika diketahui P(D)=0.3, P(S)=0.7, P(Pos∣D)=0.8, P(Pos∣S)=0.1. Maka P(D∣Pos) adalah:
0.56
0.3
0.25
0.75
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Sebuah sistem memiliki dua jenis pengguna: Mahasiswa (70%) dan Dosen (30%). Mahasiswa mengalami error 20%, sedangkan Dosen 40%. Jika seseorang mengalami error, peluang dia seorang Dosen adalah:
0.18
0.30
0.38
0.46
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Distribusi seragam memiliki:
Nilai tengah tetap
Probabilitas yang sama untuk semua nilai
Hanya satu nilai kemungkinan
Distribusi berbentuk lonceng
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