In a certain college, the probability that a randomly selected graduating student will enrol in an o

Question

In a certain college, the probability that a randomly selected graduating student will enrol in an overseas university is $0.3$. From a randomly chosen graduating class of $20$ students, find the probability that more than $4$ students will enrol in an overseas university. [2] Given that the graduating batch consists of $15$ classes of $20$ students each, find the probability that there will be less than $13$ classes in which at least $5$ students in each class will enrol in an overseas university. [3]

Accepted Answer

$	ext{P}\left( X>4 ight)=0.762$; $	ext{P}\left( Y<13 ight)=0.728$

2013 PJC P2 Q9

2013 PJC P2 Q9