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.
1/5
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