Question
Bahasa Melayu
Satu kajian yang dijalankan di sebuah kolej mendapati bahawa 1 daripada setiap 4 orang pelajar berbasikal ke kampus. Sembilan orang pelajar dipilih secara rawak daripada kolej itu. Pemboleh ubah rawak diskret $X$ mewakili bilangan pelajar dalam kalangan sembilan orang itu yang berbasikal ke kampus. Hitung kebarangkalian bahawa lebih daripada dua orang daripada sembilan orang pelajar itu berbasikal ke kampus. Beri jawapan anda betul kepada empat tempat perpuluhan.
English
A study carried out at a college found that 1 out of every 4 students cycles to the campus. Nine students are chosen at random from the college. The discrete random variable $X$ represents the number of students among the nine who cycle to the campus. Calculate the probability that more than two of the nine students cycle to the campus. Give your answer correct to four decimal places.
Tap to take a photo or choose an image
JPG or PNG acceptedWrite with Apple Pencil on iPad (or finger / mouse) — the AI reads your working and grades it.
Type your answer
Loading…
⌨ Math input▾
Modelled on Selangor trial · Kertas 1 · Q12(b)
Grading your answer... please wait
Modelled on Selangor trial · Kertas 1 · Q12(b)
Try it free — the AI marks 3 answers a day.
A free account marks 30 a day.
Sign up free →
📖 Input mode
Study the worked solution, then try one like it. Revealed questions aren't counted.
Back to practice mode