Question

1500 families with 2 children were selected randomly, and the

following data were recorded.
1
0
2
No of girls in a family
814
211
475
No of families
Compute the probability of a family, chosen at random
having
(i) 2 girls (ii) 1 girl
(iii) No girl​

Answer 1

Answer:

(i)P(2girls)=No. of families having 2 girls / Total no. of families = 475/1500 = 19/60

(ii)P(1 girl)= No. of families having 1 girl / Total no. of families = 814/1500 = 407/750

(iii)P(no girl)=No. of families having 0 girl / Total no. of families = 211/1500