Question:
In a family of 3 children calculate the probability of having at least one boy.
Answer:
Given a family having 3 children.
Let B and G denotes boy and girl respectively.
Now following outcomes may be noted:
BBB, BBG, BGB, BGG, GBG, GGB, GBB, GGG
Total outcome = 8
In seven outcomes, there is at least one boy.
So, the probability of having at least one boy = 7/8
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