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प्रश्न
Suppose that each child born is equally likely to be a boy or a girl. Consider a family with exactly three children.
Write the following events as a set and find its probability:
The event that exactly one child is a girl.
उत्तर
Let A denote the event: ‘exactly one child is a girl’
A = {BBG, BGB, GBB}
P(A) = `3/8`
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