Question

# 1500 families with 2 children were selected randomly, and the following data were recorded Number of girls in a family210Number of families300500700 Compute the probability of a family chosen at random having 2 girls. 1/3 1/5 7/15 8/15

Solution

## The correct option is B 1/5 The total number of families = 300+500+700 = 1500 The families which have two girls = 300 P(Number of families having two girls) = Number of favourable outcomesTotal number of possible outcomes                                                               =3001500 =15

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