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Question
2 boys and 2 girls are in room P and 1 boy 3 girls are in room Q. Write the sample space for the experiment in which a room is selected and then a person.
Solution
Let us denote two boys and two girls in room P as B1, B2 and G1, G2, respectively.
Let us denote one boy and three girls in room Q as B3 and G3, G4, G5, respectively.
Accordingly, the required sample space is given by S = {(P, B1), (P, B2), (P, G1), (P, G2) (Q, B3), (Q, G3), (Q, G4),
(Q, G5)}.
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