Question

In a group of 12 international referees, there are three from Africa, four from Asia and...

In a group of 12 international referees, there are three from Africa, four from Asia and five from Europe. To officiate at a tournament, three referees are chosen at random from the group. Find the probability that:
i) A referee is chosen from each Continent.
ii) Two referees are chosen from Asia.
iii) All the three referees are chosen from the same Continent.

Math   Statistics-And-Probability   
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Answer #1

Solution-

Given data,

n=12

n1=3

n2=4

n3=5

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