
MATEMATIKA
Presentation
•
Mathematics
•
KG
•
Hard
Sitti Kurniati
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6 Slides • 0 Questions
1
PELUANG
Distribusi Peluang Binomial
Distribusi Normal dan Uji Hipotesis
A.Distribusi Peluang Binomial
B.Distribusi Normal
C.Uji Hipotesis
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2
1.Variabel Acak
2.Distribusi Peluang Variabel Acak Diskrit
3.Fungsi Distribusi
5.Peluang Binomial
6.Distribusi Binomial Kumulatif
Distribusi Peluang Binomial
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3
•Misalkan X adalah banyak sisi gambar yang terlihat pada percobaan melambungkan sekeping uang logam sebanyak tiga kali.
•Ruang sampel percobaan adalah S = {AAA, AAG, AGA, GAA, AGG, GAG, GGA, GGG}.
Nilai X = 0 jika muncul AAA;
Nilai X = 1 jika muncul AAG, AGA, dan GAA;
Nilai X = 2 jika muncul AGG, GAG, dan GGA;
Nilai X = 3 jika muncul GGG.
Contoh
Variabel yang nilainya ditentukan dalam ruang sampel suatu percobaan disebut variabel acak.
Variabel acak dinyatakan dengan huruf besar, misalnya X, Y, dan Z, sedangkan nilai variabel acak dinyatakan dengan huruf kecil, misalnya x, y, dan z.
Jenis variabel acak:
a.Variabel acak diskrit diperoleh dari hasil menghitung/membilang dan nilainya berupa bilangan bulat.
b.Variabel acak kontinu diperoleh dari hasil mengukur dan nilainya berupa bilangan real.
Variabel Acak
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4
•Misalkan X = banyak sisi gambar yang terlihat pada pada percobaan melambungkan sekeping uang logam sebanyak tiga kali.
•Nilai-nilai variabel acak X dan titik sampelnya
Contoh
•Distribusi peluang variabel acak diskrit: cara untuk menyajikan peluang nilai-nilai variabel acak diskrit .
•Notasi peluang nilai variabel acak X:
f(x) = P(X = x).
•Distribusi peluang variabel acak diskrit dapat dinyatakan dalam bentuk tabel, grafik, atau fungsi.
•Sifat-sifat peluang variabel acak diskrit :
a.0 ≤ f(xᵢ) ≤ 1 untuk i = 1, 2, 3, 4, . . ., n.
b.Σ f(xᵢ) = f(1) + f(2) + f(3) + . . . + f(n) = 1.
Distribusi Peluang Variabel Acak Diskrit
5
Fungsi Distribusi Kumulatif Variabel Acak Diskrit
Peluang variabel acak X yang kurang dari atau sama dengan suatu nilai x, ditulis dengan F(x) = P(X ≤ x). Nilai F(x) dinamakan fungsi distribusi kumulatif.
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6
TERIMAKASIH
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PELUANG
Distribusi Peluang Binomial
Distribusi Normal dan Uji Hipotesis
A.Distribusi Peluang Binomial
B.Distribusi Normal
C.Uji Hipotesis
Some text here about the topic of discussion
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