c) If two students are selected at random without replacement, find the probability that at least one of the students prefers an iPhone. ["Hint: Draw a tree diagram and let I be an event such that a student prefers an iPhone and let I be an event such a student does not prefer an iPhone]

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Chapter1: Combinatorial Analysis
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Question 3
One hundred students were surveyed about their preference between iPhone and Android. The
following table displays the data for the sample of students who responded to the survey.
Satu tinjauan telah dijalankan ke atas seratus orang pelajar mengenai pilihan mereka di
antara iPhone atau Android. Jadual berikut memaparkan data untuk sampel pelajar yang
menjawab tinjauan tersebut.
Male (M)
Lelaki (M)
Preference
Female (F)
Total
Pilihan
Perempuan (F)
Jumlah
iPhone (1)
iPhone (1)
12
20
32
Android (A)
Android (A)
34
24
58
No preference ((N)
Tiada keutamaan (N)
Total
Jumlah
4
9.
10
50
50
100
Transcribed Image Text:Question 3 One hundred students were surveyed about their preference between iPhone and Android. The following table displays the data for the sample of students who responded to the survey. Satu tinjauan telah dijalankan ke atas seratus orang pelajar mengenai pilihan mereka di antara iPhone atau Android. Jadual berikut memaparkan data untuk sampel pelajar yang menjawab tinjauan tersebut. Male (M) Lelaki (M) Preference Female (F) Total Pilihan Perempuan (F) Jumlah iPhone (1) iPhone (1) 12 20 32 Android (A) Android (A) 34 24 58 No preference ((N) Tiada keutamaan (N) Total Jumlah 4 9. 10 50 50 100
c) If two students are selected at random without replacement, find the probability that at
least one of the students prefers an iPhone.
"Hint: Draw a tree diagram and let I be an event such that a student prefers an iPhone
and let I be an event such a student does not prefer an iPhone]
Jika dua orang pelajar dipilih secara rawak tanpa penggantian, cari kebarangkalian
bahawa sekurang-kurangnya seorang daripada pelajar memilih iPhone.
[Petunjuk: Lukis sebuah gambar rajah pokok dan andaikan I sebagai satu peristiwa
bagi pelajar memilih iPhone dan andaikan 1 sehagai satu peristiwa bagi pelajar lidak
memilih iPhonel
Transcribed Image Text:c) If two students are selected at random without replacement, find the probability that at least one of the students prefers an iPhone. "Hint: Draw a tree diagram and let I be an event such that a student prefers an iPhone and let I be an event such a student does not prefer an iPhone] Jika dua orang pelajar dipilih secara rawak tanpa penggantian, cari kebarangkalian bahawa sekurang-kurangnya seorang daripada pelajar memilih iPhone. [Petunjuk: Lukis sebuah gambar rajah pokok dan andaikan I sebagai satu peristiwa bagi pelajar memilih iPhone dan andaikan 1 sehagai satu peristiwa bagi pelajar lidak memilih iPhonel
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