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1500 families with 2 children were selected randomly, and the following data were recorded :

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1500 families with 2 children were selected randomly, and the following data were recorded : Number of girls in a family 2 1 0 Number of families 475 814 211 Compute the probability of a family, chosen at random, having (i) 2 girls (ii) 1 girl, (iii) No girl Also check whether the sum of these probabilities is 1. Select the correct answer from above options

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Total number of families =1500 (i) Family with 2 girls = 475 ∴ P1(Family with 2 girls) (ii) Family with 1 girl = 814 ∴ P2 (Family with 1 girl) (iii) Family without girls = 211 ∴ P3 (Family without girls) ∴ Sum of probabilities is 1.

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