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1500 families with 2 children were selected randomly, and the following data were recorded:Compute the probability of a family, chosen at random, having 2 girls

Q2. 1500 families with 2 children were selected randomly, and the following data were recorded:
Compute the probability of a family, chosen at random, having

(i) 2 girls

Answers (1)
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From the above question, the data that we can take is,

Total Number of families= 475+814+211 = 1500

Number of families having 2 girls in the family =475

We know:

Empirical (or experimental) probability P(E) of this event can be written as

P(Family, chosen at random has 2 girls) =

\frac{Familes\:with \:2 \:girls}{Total \:number \:of \:Families}

= 475/1500 = 19/60

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