Ujian Akhir Semester Probabilitas
Quiz
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Mathematics
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University
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Practice Problem
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Medium
Gabriel MeqFaden
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50 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Manakah pernyataan berikut yang BENAR tentang distribusi uniform kontinu?
Memiliki puncak distribusi di mean
Probabilitas untuk setiap nilai dalam interval tidak sama
Digunakan hanya untuk data diskrit
Probabilitas setiap nilai dalam interval [a, b] adalah konstan
Variansnya selalu nol
2.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Jika sebuah variabel acak X memiliki distribusi uniform dengan batas bawah a = 2 dan batas atas b = 6, berapakah nilai rata-rata (mean) dari X?
2
4
6
8
3
3.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Dalam distribusi uniform, nilai varians dapat dihitung dengan rumus:
(a + b)/2
√(b - a)
(b - a)^2 / 12
(b + a)^2 / 2
(b - a)^2 / 2
4.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Distribusi eksponensial digunakan untuk memodelkan:
Waktu antar kedatangan dalam proses Poisson
Sebaran tinggi badan siswa
Hasil ujian matematika
Peluang hasil pelemparan dadu
Nilai dari pengukuran tetap
5.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Salah satu ciri khas dari distribusi eksponensial adalah sifat:
Probabilitas yang menurun seiring waktu
Simetri terhadap rata-rata
Mempunyai dua puncak distribusi
Sifat "memoryless"
Dapat berubah menjadi diskrit
6.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Parameter utama dari distribusi eksponensial adalah:
Median dan modus
Lambda (λ) yang menunjukkan tingkat kedatangan kejadian
Mean dan standar deviasi saja
Probabilitas tetap
Rentang antara dua nilai
7.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
Distribusi normal memiliki ciri-ciri berikut, KECUALI:
Kurva berbentuk lonceng
Simetris terhadap rata-rata
Mean, median, dan modus berada di tempat yang sama
Memiliki probabilitas konstan untuk setiap nilai
Banyak digunakan dalam uji hipotesis
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