1500 families with
2 children were selected randomly, and the following data were recorded:
No. of girls in a family | 2 | 1 | 0 |
No. 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.