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प्रश्न
In a family having three children, there may be no girl, one girl, two girls or three girls. So, the probability of each is `1/4`. Is this correct? Justify your answer
उत्तर
No it is not correct that in a family having three children, there may be no girl, one girl, two girls or three girls, the probability of each is `1/4`.
Let boys be B and girls be G
Outcomes can be BBB, GGG, BBG, BGB, GBB, GGB, GBG, BGG
Then Probability of 3 girls = `1/8`
Probability of 0 girls = `1/8`
Probability of 2 girls = `3/8`
Probability of 1 girl = `3/8`
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