Question
Bahasa Melayu
Di sebuah sekolah, suatu sampel rawak yang terdiri daripada $n$ orang murid dipilih dan $X$ ialah bilangan murid dalam sampel itu yang berbasikal ke sekolah. $X$ mengikut taburan binomial. Diberi bahawa min bagi $X$ ialah $6$ dan varians bagi $X$ ialah $1.5$. Cari kebarangkalian bahawa lebih daripada $6$ orang murid dalam sampel itu berbasikal ke sekolah. Beri jawapan betul kepada empat tempat perpuluhan.
English
In a certain school, a random sample of $n$ pupils is chosen and $X$ is the number of pupils in the sample who cycle to school. $X$ follows a binomial distribution. It is given that the mean of $X$ is $6$ and the variance of $X$ is $1.5$. Find the probability that more than $6$ pupils in the sample cycle to school. Give your answer correct to four decimal places.
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Modelled on Selangor trial · Kertas 2 · Q11(a)
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Modelled on Selangor trial · Kertas 2 · Q11(a)
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