2 boys and 2 girls are in Room X, and 1 boy ...

NCERT Class XI Mathematics - Probability - Solutions

Question : 6 of 54

Marks: +1, -0

2 boys and 2 girls are in Room X, and 1 boy and 3 girls in Room Y. Specify the sample space for the experiment in which a room is selected and then a person.

Solution:

Let

B_1, B_2

and

G_1, G_2

are the boys and girls respectively in room X,

B_3

and

G_3, G_4, G_5

are the boy and girls respectively in room Y. The sample space S for the experiment is given by S = {

XB_1, XB_2, XG_1, XG_2

YB_3, YG_3, YG_4, YG_5

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