In a survey of $140$ students who had recently migrated with their families to Singapore, students

Question

In a survey of $140$ students who had recently migrated with their families to Singapore, students were asked to indicate the birth places of both their parents. The results are displayed in the accompanying table. Mother’s birth place UKEuropeAsia Father’s birth place UK $45$$16$$4$ Europe $7$$12$$1$ Asia $8$$2$$45$ Find the probability that a randomly selected student from this group has both parents born in the UK.[2] Find the probability that a student randomly selected from those with mothers born in the UK, has a father born in Asia.[3] Find the probability that a student randomly chosen from this group have a parent born in either UK or Europe.[3]

Accepted Answer

(i) $\frac9{28}$ (ii) $\frac2{15}$ (iii) $\frac{19}{28}$

		Mother’s birth place
		UK	Europe	Asia
Father’s birth place	UK	\(45\)	\(16\)	\(4\)
	Europe	\(7\)	\(12\)	\(1\)
	Asia	\(8\)	\(2\)	\(45\)

2015 NYJC P2 Q8

2015 NYJC P2 Q8

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