Construct a probability distribution table if we let X the random variable be the number of
boys in the family with 3 children.
As boys are equally likely.
For three children the possible outcomes are,
BBB=3
BBG=2
BGB=2
BGG=1
GBB=2
GBG=1
GGB=1
GGG=0
B represents Boys and G represent Girls
Therefore X takes value {0,1,2,3} from above.
Probability distribution table is
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